i need help writing the chemical formula?
Q. solid barium carbonate reacts with sulfur trioxide gas to produce solid barium sulfate and carbon dioxide gas
Asked by Bullet the Words At Mockingbirds - Tue Mar 3 19:22:20 2009 - - 1 Answers - 0 Comments
A. BaCO3(s) + SO3(g) BaSO4(s) + CO2(g) And there's no need to balance this equation because it's already balanced! Hope this helps! :)
Answered by unknown - Tue Mar 3 19:26:21 2009
Q. solid barium carbonate reacts with sulfur trioxide gas to produce solid barium sulfate and carbon dioxide gas
Asked by Bullet the Words At Mockingbirds - Tue Mar 3 19:22:20 2009 - - 1 Answers - 0 Comments
A. BaCO3(s) + SO3(g) BaSO4(s) + CO2(g) And there's no need to balance this equation because it's already balanced! Hope this helps! :)
Answered by unknown - Tue Mar 3 19:26:21 2009
chmistry help ?? over formulas?
Q. 3.What is the formula for hydroxide'? Calcium chloride? 4.What is the formula for the compound formed by iron(II) ions and carbonate ions? 5.What is the formula for aluminum hydroxide? 6.What is the formula for lead oxide? 7.What is the formula for magnesium nitrate? 8.What is the name of the compound NH3? CO? CC14? 9.What is the cation in iron (II) oxide? 10.What is the name of the compound N2O2? H2O2? 11.What is the formula for sulfur trioxide? 12.What is the oxidation number of boron in most compounds? Nitrogen? Oxygen? Chlorine? 13.What is the oxidation number of hydrogen in H2O? What is the oxidation number of sodium in NaCl? 14.How do you know a compound is covalent when looking at the chemical formula? 15.Using the ion pairs… [cont.]
Asked by meagan - Thu Oct 30 14:04:15 2008 - - 1 Answers - 0 Comments
Q. 3.What is the formula for hydroxide'? Calcium chloride? 4.What is the formula for the compound formed by iron(II) ions and carbonate ions? 5.What is the formula for aluminum hydroxide? 6.What is the formula for lead oxide? 7.What is the formula for magnesium nitrate? 8.What is the name of the compound NH3? CO? CC14? 9.What is the cation in iron (II) oxide? 10.What is the name of the compound N2O2? H2O2? 11.What is the formula for sulfur trioxide? 12.What is the oxidation number of boron in most compounds? Nitrogen? Oxygen? Chlorine? 13.What is the oxidation number of hydrogen in H2O? What is the oxidation number of sodium in NaCl? 14.How do you know a compound is covalent when looking at the chemical formula? 15.Using the ion pairs… [cont.]
Asked by meagan - Thu Oct 30 14:04:15 2008 - - 1 Answers - 0 Comments
Please help: lewis structures, balancing chemical equations, VSEPR theory.?
Q. I need help with these problems on my chemistry review! I know it's alot, but please do whatever u can the best u can. I typed all of the numbers regular size for ex. O2. They are supposed to be smaller and lower, (idk what u call it I was thinkin exponents but exponents are in the upper right hand corner but anyway u know what I mean). Please bare with me! Especially on the lewis structures. Draw Lewis Structures for each of the following molecules: O2 N2 CO SO2 Draw a Lewis structure for each of the following, and then use VSEPR theory to predict the molecular geometry of each: SCl2 PI3 CL2O NH2CL SiCl3Br ONCl Write formulas for each of the following compounds: Potassium Hydroxide Calcium Nitrate Sodium Carbonate Carbon… [cont.]
Asked by Reesie - Tue Apr 21 22:07:34 2009 - - 1 Answers - 0 Comments
A. Visit these sites to learn more about chemistry formulas and concepts that can help you in regards to your problem:
Answered by Dhan Noon - Sat Apr 25 20:33:29 2009
Q. I need help with these problems on my chemistry review! I know it's alot, but please do whatever u can the best u can. I typed all of the numbers regular size for ex. O2. They are supposed to be smaller and lower, (idk what u call it I was thinkin exponents but exponents are in the upper right hand corner but anyway u know what I mean). Please bare with me! Especially on the lewis structures. Draw Lewis Structures for each of the following molecules: O2 N2 CO SO2 Draw a Lewis structure for each of the following, and then use VSEPR theory to predict the molecular geometry of each: SCl2 PI3 CL2O NH2CL SiCl3Br ONCl Write formulas for each of the following compounds: Potassium Hydroxide Calcium Nitrate Sodium Carbonate Carbon… [cont.]
Asked by Reesie - Tue Apr 21 22:07:34 2009 - - 1 Answers - 0 Comments
A. Visit these sites to learn more about chemistry formulas and concepts that can help you in regards to your problem:
Answered by Dhan Noon - Sat Apr 25 20:33:29 2009
Chemistry Multiple Choice Questions Help?
Q. 1. The species 25 Mg2+ 12 contains: a) 12 protons and 12 electrons b) 14 protons and 12 electrons c) 10 protons and 12 electrons d) 12 protons and 14 electrons e) 12 protons and 10 electrons 2.) What is the symbol for the bisulfite ion? a) HSO42- b) H2SO4- c) HSO3- d) HSO32- e) HSO4- 3.) Silver "tarnish" is silver (I) sulfide. What is its formula? a) AgSO4 b) AgS c) Ag2SO4 d) Ag2S e) AgS2 4.) Consider the formulas SIBr4 and SiBr4. These symbols represent species: a) having the same composition. b) having the same molar mass. c) having equal numbers of atoms. d) none of the above are correct. e) which are identical. 5.) What is the chemical name of BaSO4? a) Barium… [cont.]
Asked by AP Chem - Sun Aug 16 20:03:59 2009 - - 1 Answers - 0 Comments
A. tisk tisk, having people do your homework for you? :P i have the answers to all of them, just give me a minute to type them up. 1. B 2. D 3. C 4. D 5. A 6. A 7. C 8. C 9. A 10. A 11. A 12. E 13. E 14. B 15. A 16. A 17. E or D 18. D 19. A 20. D #14. (though Germanium doesn't usually form ions. but being that it has 4 valence electrons and Oxygen has 6 valence electrons, they can be double covalently bonded to both satisfy octets. but it would only be one and one, GeO, aka answer B) #17. (answer should be 11.17 i think but that's not a choice.) #18. (couldn't figure it out but it would have to be in group 3 or 13 based on the composition of the formula unit/molecule. D is the only one aka element Y.)
Answered by unknown - Sun Aug 16 21:10:24 2009
Q. 1. The species 25 Mg2+ 12 contains: a) 12 protons and 12 electrons b) 14 protons and 12 electrons c) 10 protons and 12 electrons d) 12 protons and 14 electrons e) 12 protons and 10 electrons 2.) What is the symbol for the bisulfite ion? a) HSO42- b) H2SO4- c) HSO3- d) HSO32- e) HSO4- 3.) Silver "tarnish" is silver (I) sulfide. What is its formula? a) AgSO4 b) AgS c) Ag2SO4 d) Ag2S e) AgS2 4.) Consider the formulas SIBr4 and SiBr4. These symbols represent species: a) having the same composition. b) having the same molar mass. c) having equal numbers of atoms. d) none of the above are correct. e) which are identical. 5.) What is the chemical name of BaSO4? a) Barium… [cont.]
Asked by AP Chem - Sun Aug 16 20:03:59 2009 - - 1 Answers - 0 Comments
A. tisk tisk, having people do your homework for you? :P i have the answers to all of them, just give me a minute to type them up. 1. B 2. D 3. C 4. D 5. A 6. A 7. C 8. C 9. A 10. A 11. A 12. E 13. E 14. B 15. A 16. A 17. E or D 18. D 19. A 20. D #14. (though Germanium doesn't usually form ions. but being that it has 4 valence electrons and Oxygen has 6 valence electrons, they can be double covalently bonded to both satisfy octets. but it would only be one and one, GeO, aka answer B) #17. (answer should be 11.17 i think but that's not a choice.) #18. (couldn't figure it out but it would have to be in group 3 or 13 based on the composition of the formula unit/molecule. D is the only one aka element Y.)
Answered by unknown - Sun Aug 16 21:10:24 2009
help on chemistry homework!!!?
Q. 1.) Write the chemical formula for each of the following: a.) nitric acid b.) solid iodine c.) ozone d.) sodium hydroxide e.) methane f.) sulfur dioxide g.) hydrogen cyanide h.) acetic acid i.) hydrogen peroxide j.) sodium carbonate 2.) give the mass in grams of one mole of each of the following a.) H(2)SO(4) b.)[NH(2)](2)CO c.) {Ag[NH(3)]2}3PO(4) d.) liquid bromine e.) sodium hydrogen carbonate f.) ammonia 3.) emerald gemstones are composed mainly of beryl, which has chemical formula of Be(3)Al(2)Si(6)O(18) (Al = aluminum). What is the % composition of mass of beryl? 4.) a.) What mass of iron metal can be obtained from 1 metric ton (1000.0kg) of hematite, an iron ore which has the chemical formula of Fe(2)O(3)? b.) What mass of… [cont.]
Asked by the_classifieds103 - Sun Sep 28 22:10:24 2008 - - 1 Answers - 0 Comments
A. Wow, now I understand why nobody is answering this question lol But since they are just too easy, i will just give you the answer you can always check wikipedia.org though 1a. HNO3b b. I2 c. O3 d. NaOH e. CH4 f. SO2 g. HCN h. CH3COOH i. H2O2 j. Na2CO3 2a. 98 b. 60 c.818 d. 160 e. 84 f. 17 3. Doubt it can be calculated, lack of infomation/ wrong pharsing 4a. 700kg b. 1428.571429 KG 5. Why are you using solar mass lol. C8H8O6 You don't need your TB to do all these.
Answered by unknown - Thu Oct 2 12:06:19 2008
Q. 1.) Write the chemical formula for each of the following: a.) nitric acid b.) solid iodine c.) ozone d.) sodium hydroxide e.) methane f.) sulfur dioxide g.) hydrogen cyanide h.) acetic acid i.) hydrogen peroxide j.) sodium carbonate 2.) give the mass in grams of one mole of each of the following a.) H(2)SO(4) b.)[NH(2)](2)CO c.) {Ag[NH(3)]2}3PO(4) d.) liquid bromine e.) sodium hydrogen carbonate f.) ammonia 3.) emerald gemstones are composed mainly of beryl, which has chemical formula of Be(3)Al(2)Si(6)O(18) (Al = aluminum). What is the % composition of mass of beryl? 4.) a.) What mass of iron metal can be obtained from 1 metric ton (1000.0kg) of hematite, an iron ore which has the chemical formula of Fe(2)O(3)? b.) What mass of… [cont.]
Asked by the_classifieds103 - Sun Sep 28 22:10:24 2008 - - 1 Answers - 0 Comments
A. Wow, now I understand why nobody is answering this question lol But since they are just too easy, i will just give you the answer you can always check wikipedia.org though 1a. HNO3b b. I2 c. O3 d. NaOH e. CH4 f. SO2 g. HCN h. CH3COOH i. H2O2 j. Na2CO3 2a. 98 b. 60 c.818 d. 160 e. 84 f. 17 3. Doubt it can be calculated, lack of infomation/ wrong pharsing 4a. 700kg b. 1428.571429 KG 5. Why are you using solar mass lol. C8H8O6 You don't need your TB to do all these.
Answered by unknown - Thu Oct 2 12:06:19 2008
Compound Names & Formulas?
Q. 1. Name the following ionic compounds, specifying the charge of any transition metal cations. a. Ni3(PO4)2 b. FeI2 c. MnF3 d. CrCl2 e. NaCn f. CuS 2. Name the following covalent compounds. a. As2O5 b. SiL4 c. P4S3 d. P4O10 e. SeO2 f. PCl3 3. Explain why Roman numerals must be included in names of MnO2 and Mn2O7. Name both of these compounds. 4. Identify how many fluorine atoms are in one molecules of sulfur hexafluoride. 5. An unknown compound contains 49.47 percent C, 5.20 percent H, 28.85 percent N, and a certain percentage of oxygen. What percentage of the compound must be oxygen? (Hint: The sum of the percentages should equal 100 %.) 6. What is the charge of cadmium cation in cadmium cyanide, Cd(Cn)2, a compound used in… [cont.]
Asked by {[xx]} - Sun Nov 2 01:12:02 2008 - - 5 Answers - 0 Comments
A. 1. Name the following ionic compounds, specifying the charge of any transition metal cations. a. Ni3(PO4)2 nickel(II) phosphate b. FeI2 iron(II) iodide c. MnF3 Manganese(III) fluoride d. CrCl2 Chromium(III) chloride e. NaCN Sodium cyanide f. CuS Copper(II) sulfide 2. Name the following covalent compounds. a. As2O5 Arsenic pentoxide (also known as Arsenic(V) oxide) b. SiL4 there is no element with the abbreviation L c. P4S3 phosphorus trisulfide (also known as tetraphosphorus trisulfide) d. P4O10 Phosphorus pentoxide (also known as Phosphorus(V) oxide) e. SeO2 Selenium dioxide (also known as Selenium(IV) oxide) f. PCl3 Phosphorus trichloride (also known as Phosphorus(III) chloride) 3. Explain why Roman numerals must be included in names… [cont.]
Answered by Be Positive!!! - Sun Nov 2 01:50:53 2008
Q. 1. Name the following ionic compounds, specifying the charge of any transition metal cations. a. Ni3(PO4)2 b. FeI2 c. MnF3 d. CrCl2 e. NaCn f. CuS 2. Name the following covalent compounds. a. As2O5 b. SiL4 c. P4S3 d. P4O10 e. SeO2 f. PCl3 3. Explain why Roman numerals must be included in names of MnO2 and Mn2O7. Name both of these compounds. 4. Identify how many fluorine atoms are in one molecules of sulfur hexafluoride. 5. An unknown compound contains 49.47 percent C, 5.20 percent H, 28.85 percent N, and a certain percentage of oxygen. What percentage of the compound must be oxygen? (Hint: The sum of the percentages should equal 100 %.) 6. What is the charge of cadmium cation in cadmium cyanide, Cd(Cn)2, a compound used in… [cont.]
Asked by {[xx]} - Sun Nov 2 01:12:02 2008 - - 5 Answers - 0 Comments
A. 1. Name the following ionic compounds, specifying the charge of any transition metal cations. a. Ni3(PO4)2 nickel(II) phosphate b. FeI2 iron(II) iodide c. MnF3 Manganese(III) fluoride d. CrCl2 Chromium(III) chloride e. NaCN Sodium cyanide f. CuS Copper(II) sulfide 2. Name the following covalent compounds. a. As2O5 Arsenic pentoxide (also known as Arsenic(V) oxide) b. SiL4 there is no element with the abbreviation L c. P4S3 phosphorus trisulfide (also known as tetraphosphorus trisulfide) d. P4O10 Phosphorus pentoxide (also known as Phosphorus(V) oxide) e. SeO2 Selenium dioxide (also known as Selenium(IV) oxide) f. PCl3 Phosphorus trichloride (also known as Phosphorus(III) chloride) 3. Explain why Roman numerals must be included in names… [cont.]
Answered by Be Positive!!! - Sun Nov 2 01:50:53 2008
Identifying the five types of chemical reactions. HELP!!! Easy.?
Q. 22. What type of reaction is the following... "when beryllium carbonate, BeCO2, reacts with nitric acid, HNO3, beryllium nitrate and carbonice acid form." 23. What type of reaction is the following... "sulfuric acid breaks down into warer and sulfur trioxide." 24. What is the general formula for a synthesis reaction? How many reactant and products are in a synthesis reaction? 25 what are the reactants in a complete combustion reaction? What are the products? 26How many reactants and products does a double replacement reaction have?
Asked by Katrina M - Mon Jan 12 07:37:58 2009 - - 3 Answers - 0 Comments
A. 22. is double replacement 23. Decomposition 24. x + y = xy 25. This is where oxygen in the reactant "com busts" 26. wx + yz = yx + wz
Answered by Kj - Mon Jan 12 07:52:39 2009
Q. 22. What type of reaction is the following... "when beryllium carbonate, BeCO2, reacts with nitric acid, HNO3, beryllium nitrate and carbonice acid form." 23. What type of reaction is the following... "sulfuric acid breaks down into warer and sulfur trioxide." 24. What is the general formula for a synthesis reaction? How many reactant and products are in a synthesis reaction? 25 what are the reactants in a complete combustion reaction? What are the products? 26How many reactants and products does a double replacement reaction have?
Asked by Katrina M - Mon Jan 12 07:37:58 2009 - - 3 Answers - 0 Comments
A. 22. is double replacement 23. Decomposition 24. x + y = xy 25. This is where oxygen in the reactant "com busts" 26. wx + yz = yx + wz
Answered by Kj - Mon Jan 12 07:52:39 2009
Indetifying the reaction?
Q. Can you please help me identify the reaction for these chemical formulas, such as single replacement, double replacement, sythesis, decompisiton and more 1) Aluminum+ Iron (III) Chroide---> 2) Calcium Hydroxide---> 3)Water(use H2O) + Sulfur Trioxide---> 4) Sodium Choride + Magnesium Sulfate---> 5) Nitric Acid + Sodium Hydroxide---> 6) Butane (C4H10) + Oxygen---> 7) Copper (II) Carbonate---> 8) Silver + Oxygen--->
Asked by not857 - Sun Dec 10 14:32:30 2006 - - 2 Answers - 0 Comments
A. 1) Single Replacement (SR) 2) Decomposition (DEC) 3) Double Replacement (DR) 4) DR 5) DR 6) SR 7) DEC 8) Synthesis (SYN)
Answered by abcde12345 - Sun Dec 10 14:54:20 2006
Q. Can you please help me identify the reaction for these chemical formulas, such as single replacement, double replacement, sythesis, decompisiton and more 1) Aluminum+ Iron (III) Chroide---> 2) Calcium Hydroxide---> 3)Water(use H2O) + Sulfur Trioxide---> 4) Sodium Choride + Magnesium Sulfate---> 5) Nitric Acid + Sodium Hydroxide---> 6) Butane (C4H10) + Oxygen---> 7) Copper (II) Carbonate---> 8) Silver + Oxygen--->
Asked by not857 - Sun Dec 10 14:32:30 2006 - - 2 Answers - 0 Comments
A. 1) Single Replacement (SR) 2) Decomposition (DEC) 3) Double Replacement (DR) 4) DR 5) DR 6) SR 7) DEC 8) Synthesis (SYN)
Answered by abcde12345 - Sun Dec 10 14:54:20 2006
CHemistry help !!!WILL GIVE 10 POINTS!!!?
Q. 1 determine both the formula mass and molar mass of ammonium carbonate (NH4)2CO3. 3 how many moles of atoms of each element are there in one mole of (NH4)2CO3. 4 what is the mass in grams of 3.25 mol Fe2(So4)3? 5 how many moles of aspirin, C9H8O4 are there in a 100.0mg tablet of aspirin? 6 calculate the percent composition of (NH4)CO3. 7 a sample of hydrated copper(II) sulfate(CuSO4 x nH2O) is heated to 150 degrees C. and produces 103. 74 g anhydrous copper(II) sulfate and 58.55 g water. how many moles of water molecules are present in 1.0mole of hydrated copper(II) sulfate 8 describe the difference between word equations, formula equations, and chemical equations. 9 write in and formula equations for the reaction in which aqueous… [cont.]
Asked by John - Wed May 6 13:44:24 2009 - - 2 Answers - 0 Comments
A. these are very easy sums , try them yourslef
Answered by S S B - Wed May 6 14:16:33 2009
Q. 1 determine both the formula mass and molar mass of ammonium carbonate (NH4)2CO3. 3 how many moles of atoms of each element are there in one mole of (NH4)2CO3. 4 what is the mass in grams of 3.25 mol Fe2(So4)3? 5 how many moles of aspirin, C9H8O4 are there in a 100.0mg tablet of aspirin? 6 calculate the percent composition of (NH4)CO3. 7 a sample of hydrated copper(II) sulfate(CuSO4 x nH2O) is heated to 150 degrees C. and produces 103. 74 g anhydrous copper(II) sulfate and 58.55 g water. how many moles of water molecules are present in 1.0mole of hydrated copper(II) sulfate 8 describe the difference between word equations, formula equations, and chemical equations. 9 write in and formula equations for the reaction in which aqueous… [cont.]
Asked by John - Wed May 6 13:44:24 2009 - - 2 Answers - 0 Comments
A. these are very easy sums , try them yourslef
Answered by S S B - Wed May 6 14:16:33 2009
PLEASE HELP ME WITH SOME CHEMISTRY. WILL GIVE 10 POINTS!!!?
Q. 1 determine both the formula mass and molar mass of ammonium carbonate (NH4)2CO3. 3 how many moles of atoms of each element are there in one mole of (NH4)2CO3. 4 what is the mass in grams of 3.25 mol Fe2(So4)3? 5 how many moles of aspirin, C9H8O4 are there in a 100.0mg tablet of aspirin? 6 calculate the percent composition of (NH4)CO3. 7 a sample of hydrated copper(II) sulfate(CuSO4 x nH2O) is heated to 150 degrees C. and produces 103. 74 g anhydrous copper(II) sulfate and 58.55 g water. how many moles of water molecules are present in 1.0mole of hydrated copper(II) sulfate 8 describe the difference between word equations, formula equations, and chemical equations. 9 write in and formula equations for the reaction in which aqueous… [cont.]
Asked by John - Wed May 6 12:17:07 2009 - - 1 Answers - 0 Comments
A. q 1 its is 14x2+8+12+16x3 q2 q3 q4 i dont know the mass of fe.. so there is only one way find the total molecular mass and then multiply with 3.25 ... that will give u the answr q5 find the ... total moleccular mass.. like find mass number mulitply with no of moluecules and remembr the total mass. of the molecule is the wt of one mole.. so u can find.. whn u get teh weigh of one mole q6 it will take lots of time .. so find..the mass number of the .. each elemnt divide by total mass of the whole.. compound and then you multiply by 100 so find each of .. percentage q7 q8 in word equations you will only know the names of compoundas and it will not get valid information on the valency and type of reactions in formula eqaution we can… [cont.]
Answered by nikitha k - Wed May 6 12:49:35 2009
Q. 1 determine both the formula mass and molar mass of ammonium carbonate (NH4)2CO3. 3 how many moles of atoms of each element are there in one mole of (NH4)2CO3. 4 what is the mass in grams of 3.25 mol Fe2(So4)3? 5 how many moles of aspirin, C9H8O4 are there in a 100.0mg tablet of aspirin? 6 calculate the percent composition of (NH4)CO3. 7 a sample of hydrated copper(II) sulfate(CuSO4 x nH2O) is heated to 150 degrees C. and produces 103. 74 g anhydrous copper(II) sulfate and 58.55 g water. how many moles of water molecules are present in 1.0mole of hydrated copper(II) sulfate 8 describe the difference between word equations, formula equations, and chemical equations. 9 write in and formula equations for the reaction in which aqueous… [cont.]
Asked by John - Wed May 6 12:17:07 2009 - - 1 Answers - 0 Comments
A. q 1 its is 14x2+8+12+16x3 q2 q3 q4 i dont know the mass of fe.. so there is only one way find the total molecular mass and then multiply with 3.25 ... that will give u the answr q5 find the ... total moleccular mass.. like find mass number mulitply with no of moluecules and remembr the total mass. of the molecule is the wt of one mole.. so u can find.. whn u get teh weigh of one mole q6 it will take lots of time .. so find..the mass number of the .. each elemnt divide by total mass of the whole.. compound and then you multiply by 100 so find each of .. percentage q7 q8 in word equations you will only know the names of compoundas and it will not get valid information on the valency and type of reactions in formula eqaution we can… [cont.]
Answered by nikitha k - Wed May 6 12:49:35 2009
Help with AP Chem questions?
Q. 1. Hydrogen can have oxidation states of +1, 0, and -1. Write the formula and names of for one chemical species for each of these oxidation states. 2. Name the ion: HSeO3 - 3. Write the formula for each of the following substances. (a) zinc carbonate can be heated to form zinc oxide and carbon dioxide (b) on treatment with hydrofluoric acid, silicon dioxide forms silicon tetrafluoride and water (c) sulfur dioxide reacts with water to form sulfurous acid (d) the substance hydrogen phosphide aka phosphine, is a toxic gas (e) perchloric reacts with cadmium to form cadmium perchlorate (f) vanadium(III) bromide is a colored solid
Asked by EMiLY - Sat Aug 23 22:07:46 2008 - - 2 Answers - 0 Comments
A. NH3 ammonia for +1 H2 gas for 0 LiH for -1 Lithium hydride If HSO3 is bisulfite, this should be biselenite ion These are not balanced. For 2 points you want balanced?? ZnCO3 -> ZnO + CO2 SiO2 + HF -> SiF4 + H2O SO2+H2O -> H2SO3 PH3 Cd + HClO4 -> Cd(ClO4)2 VBr3.
Answered by cattbarf - Sat Aug 23 22:25:42 2008
Q. 1. Hydrogen can have oxidation states of +1, 0, and -1. Write the formula and names of for one chemical species for each of these oxidation states. 2. Name the ion: HSeO3 - 3. Write the formula for each of the following substances. (a) zinc carbonate can be heated to form zinc oxide and carbon dioxide (b) on treatment with hydrofluoric acid, silicon dioxide forms silicon tetrafluoride and water (c) sulfur dioxide reacts with water to form sulfurous acid (d) the substance hydrogen phosphide aka phosphine, is a toxic gas (e) perchloric reacts with cadmium to form cadmium perchlorate (f) vanadium(III) bromide is a colored solid
Asked by EMiLY - Sat Aug 23 22:07:46 2008 - - 2 Answers - 0 Comments
A. NH3 ammonia for +1 H2 gas for 0 LiH for -1 Lithium hydride If HSO3 is bisulfite, this should be biselenite ion These are not balanced. For 2 points you want balanced?? ZnCO3 -> ZnO + CO2 SiO2 + HF -> SiF4 + H2O SO2+H2O -> H2SO3 PH3 Cd + HClO4 -> Cd(ClO4)2 VBr3.
Answered by cattbarf - Sat Aug 23 22:25:42 2008
Help. or I'll become a Super Senior!!!!!?
Q. Please answer these, and how you got the answer. 1.You are give 12.35g of C4H8O2. How many moles of the compound do you have? 2. How many particles do you have in 5.6 g H2S? 3. A storage tank with a volume of 500. L contains how many moles of He at STP? 4. A chemical reaction between acetic acid and calcium carbonate produces 0.76 mol of Co2 at STP. How many liters of gas were produced? 5. Find the percentage compostition of a compound that contains 17.6g of iron and 10.3g of sulfur. The total mass of the compound is 27.9g. 6. Determine the empirical formula of a compound containing 3.6g of carbon, 0.9g of hydrogen, and 2.4g of oxygen. 7. Determine the empirical formula of a coumpound containing 1.37g of barium, 0.32g of sulfur, and… [cont.]
Asked by Jordan T - Thu Feb 12 17:19:20 2009 - - 3 Answers - 0 Comments
A. 1. C4 H8 O2 = 4(12.01)+(1,01)8 + (16)2 = 88 g/mol n=m/M = 12.35/88 = 0.14 mol 2. H2S=2.02 + 32.06 = 34.08 g/mol n=m/M = 5.6/34.08 = .16 mol n=particles/Na (Na is avegadros constant 6.022 x10^23) n=9.89 x 10^22 particles 3. pV=nRT ==> n=pV/RT (at stp= p=101 kpa, T=0celcius or 273Kelvin) n = (101 x 500)/ (273 x 8.314(constant)) = 22.24 mol
Answered by minwer s - Thu Feb 12 17:36:21 2009
Q. Please answer these, and how you got the answer. 1.You are give 12.35g of C4H8O2. How many moles of the compound do you have? 2. How many particles do you have in 5.6 g H2S? 3. A storage tank with a volume of 500. L contains how many moles of He at STP? 4. A chemical reaction between acetic acid and calcium carbonate produces 0.76 mol of Co2 at STP. How many liters of gas were produced? 5. Find the percentage compostition of a compound that contains 17.6g of iron and 10.3g of sulfur. The total mass of the compound is 27.9g. 6. Determine the empirical formula of a compound containing 3.6g of carbon, 0.9g of hydrogen, and 2.4g of oxygen. 7. Determine the empirical formula of a coumpound containing 1.37g of barium, 0.32g of sulfur, and… [cont.]
Asked by Jordan T - Thu Feb 12 17:19:20 2009 - - 3 Answers - 0 Comments
A. 1. C4 H8 O2 = 4(12.01)+(1,01)8 + (16)2 = 88 g/mol n=m/M = 12.35/88 = 0.14 mol 2. H2S=2.02 + 32.06 = 34.08 g/mol n=m/M = 5.6/34.08 = .16 mol n=particles/Na (Na is avegadros constant 6.022 x10^23) n=9.89 x 10^22 particles 3. pV=nRT ==> n=pV/RT (at stp= p=101 kpa, T=0celcius or 273Kelvin) n = (101 x 500)/ (273 x 8.314(constant)) = 22.24 mol
Answered by minwer s - Thu Feb 12 17:36:21 2009
Chemistry question help needed..?
Q. Q1. Sulfur is often recovered as a by-product of other industrial processes. State one industrial process in which sulfur is recovered. Q2. Use your knowledge of structure and bonding to explain why there is more than one compound with the molecular formula C2H4Cl2 Q3. Name the products and write an equation for any reaction that occurs when the following compounds are heated: a) rubidium carbonate (RbCO3) b) rubidium nitrate (RbNO3) (chemical equations with name of products required). thx i have referred all my textbook materials...not there...if there was...why would i post the question here??... Rubidium carbonate should be Rb2CO3. srry...
Asked by Anindit - Thu Jul 16 07:01:01 2009 - - 1 Answers - 0 Comments
Q. Q1. Sulfur is often recovered as a by-product of other industrial processes. State one industrial process in which sulfur is recovered. Q2. Use your knowledge of structure and bonding to explain why there is more than one compound with the molecular formula C2H4Cl2 Q3. Name the products and write an equation for any reaction that occurs when the following compounds are heated: a) rubidium carbonate (RbCO3) b) rubidium nitrate (RbNO3) (chemical equations with name of products required). thx i have referred all my textbook materials...not there...if there was...why would i post the question here??... Rubidium carbonate should be Rb2CO3. srry...
Asked by Anindit - Thu Jul 16 07:01:01 2009 - - 1 Answers - 0 Comments
Chemistry help please?
Q. What is the chemical formula for the following: Processed Cellulose,Ascorbic Acid, Synthetic Butadiene Rubber, Polystyrene, Potassium Aluminum Sulfate, Sodium Iodide, Sucrose, Zinc Metal, Malic Acid, Tartaric Acid, Sodium Bicarbonate, Silicon, Sulfur, Sodium Hydroxide, Hydrochloric Acid, Polyethylene, Aceton, Copper, Folic Carotene, Monosodium Glutamate, Polyvinyl Chloride, Phosphoric Acid, Sodium Carbonate, Isopropyl Alcohol, and Sodium Hypochlorite. Or help me find an website that I can find these things on.
Asked by Latara T - Tue Jan 6 18:58:53 2009 - - 2 Answers - 0 Comments
A. try that...should help
Answered by hawaiianhaoli - Tue Jan 6 19:03:27 2009
Q. What is the chemical formula for the following: Processed Cellulose,Ascorbic Acid, Synthetic Butadiene Rubber, Polystyrene, Potassium Aluminum Sulfate, Sodium Iodide, Sucrose, Zinc Metal, Malic Acid, Tartaric Acid, Sodium Bicarbonate, Silicon, Sulfur, Sodium Hydroxide, Hydrochloric Acid, Polyethylene, Aceton, Copper, Folic Carotene, Monosodium Glutamate, Polyvinyl Chloride, Phosphoric Acid, Sodium Carbonate, Isopropyl Alcohol, and Sodium Hypochlorite. Or help me find an website that I can find these things on.
Asked by Latara T - Tue Jan 6 18:58:53 2009 - - 2 Answers - 0 Comments
A. try that...should help
Answered by hawaiianhaoli - Tue Jan 6 19:03:27 2009
From Yahoo Answer Search: 'chemical formula of sulfur carbonate'
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