Which of the following chemical formulas represent ionic compounds?
Q. Which of the following chemical formulas represent ionic compounds? a) SF6 b) Na2CO3 c) K2CrO4 d) HCl e) (NH4)2S f) PBr3 can you please explain how you got these answers. Thank you.
Asked by kevin n - Tue Sep 15 16:22:32 2009 - - 1 Answers - 0 Comments
Q. Which of the following chemical formulas represent ionic compounds? a) SF6 b) Na2CO3 c) K2CrO4 d) HCl e) (NH4)2S f) PBr3 can you please explain how you got these answers. Thank you.
Asked by kevin n - Tue Sep 15 16:22:32 2009 - - 1 Answers - 0 Comments
Reaction Prediction: Double Replacement Reactions?
Q. I'm having trouble with reaction predictions. How are you supposed to know what the products are going to be? What are the rules? I switch the cations and anions in double replacement reactions, but I get them wrong sometimes. Here are some homework problems I received. I typed what I think the reaction looks like. Please help me in telling me if I'm right. If not, please explain why, and tell me what it really is. Don't worry about balancing it. 1. Ammonium sulfate and potassium hydroxide are mixed together (NH4)2SO4 + KOH NH4OH + K2SO4 2. Ammonium sulfide is reacted with hydrochloric acid (NH4)2S + HCl NH4Cl + H2S 3. Cobalt(II) chloride is combined with silver nitrate CoCl2 + AgNO3 Co(NO3)2 + AgCl 4. Solid calcium carbonate… [cont.]
Asked by unknown - Thu Nov 27 12:58:11 2008 - - 1 Answers - 0 Comments
A. The reactions are right you can write H2CO3 as CO2 + H2O
Answered by Dr.A - Thu Nov 27 14:34:31 2008
Q. I'm having trouble with reaction predictions. How are you supposed to know what the products are going to be? What are the rules? I switch the cations and anions in double replacement reactions, but I get them wrong sometimes. Here are some homework problems I received. I typed what I think the reaction looks like. Please help me in telling me if I'm right. If not, please explain why, and tell me what it really is. Don't worry about balancing it. 1. Ammonium sulfate and potassium hydroxide are mixed together (NH4)2SO4 + KOH NH4OH + K2SO4 2. Ammonium sulfide is reacted with hydrochloric acid (NH4)2S + HCl NH4Cl + H2S 3. Cobalt(II) chloride is combined with silver nitrate CoCl2 + AgNO3 Co(NO3)2 + AgCl 4. Solid calcium carbonate… [cont.]
Asked by unknown - Thu Nov 27 12:58:11 2008 - - 1 Answers - 0 Comments
A. The reactions are right you can write H2CO3 as CO2 + H2O
Answered by Dr.A - Thu Nov 27 14:34:31 2008
how do you dO write a balanced net ionic equation for these?
Q. A. Pb(NO3)2(aq)+H2OSO4(aq) --->PbSO4(s)+HNO3(aq) B. Pb(C2H3O2)2(aq)+HCl(aq) --->PbCl2(s)+HC2H3O2(aq) C. Na3PO4(aq)+FeCl3(aq) --->NaCl(aq)+FePO4(aq) D. (NH4)2S(aq)+Co(NO3)2(aq) --->COS(s)+NH4NO3(aq)
Asked by $hORTyy - Wed May 13 15:26:29 2009 - - 1 Answers - 0 Comments
A. Pb2+ (aq) + SO42- (aq) = PbSO4 (s) Pb2+ (aq) + 2 Cl- = PbCl2 (s) PO43- (aq) + Fe3+ (aq) = FePO4 (s) S2- (aq) + Co2- (aq) = CoS (s)
Answered by Dr.A - Wed May 13 15:33:37 2009
Q. A. Pb(NO3)2(aq)+H2OSO4(aq) --->PbSO4(s)+HNO3(aq) B. Pb(C2H3O2)2(aq)+HCl(aq) --->PbCl2(s)+HC2H3O2(aq) C. Na3PO4(aq)+FeCl3(aq) --->NaCl(aq)+FePO4(aq) D. (NH4)2S(aq)+Co(NO3)2(aq) --->COS(s)+NH4NO3(aq)
Asked by $hORTyy - Wed May 13 15:26:29 2009 - - 1 Answers - 0 Comments
A. Pb2+ (aq) + SO42- (aq) = PbSO4 (s) Pb2+ (aq) + 2 Cl- = PbCl2 (s) PO43- (aq) + Fe3+ (aq) = FePO4 (s) S2- (aq) + Co2- (aq) = CoS (s)
Answered by Dr.A - Wed May 13 15:33:37 2009
How do you balance?
Q. 21. AgNO3 + KCl -? AgCl + KNO3 22. Mg(OH)2 + H3PO4 -> Mg3(PO4)2 + H20 23. FeS +HCl -> FeCl2 + H2S 24. (NH4)2S + Fe(NO3)2 -> NH4NO3 + FEs 25. Fe +CuSO4 -> Cu + Fe2(SO4)3
Asked by Rachel A - Tue Mar 11 22:31:53 2008 - - 1 Answers - 0 Comments
A. 21. AgNO3 + KCl ==> AgCl + KNO3 22. 3Mg(OH)2 + 2H3PO4 ==> Mg3(PO4)2 + 6H20 23. FeS +2HCl ==> FeCl2 + H2S 24. (NH4)2S + Fe(NO3)2 ==> 2NH4NO3 + FeS 25. 2Fe +3CuSO4 ==> 3Cu + Fe2(SO4)3 However, these are the easiest to balance. I mean you have to practice, otherwise you would have no clue late on.
Answered by Hahaha - Thu Mar 13 18:51:38 2008
Q. 21. AgNO3 + KCl -? AgCl + KNO3 22. Mg(OH)2 + H3PO4 -> Mg3(PO4)2 + H20 23. FeS +HCl -> FeCl2 + H2S 24. (NH4)2S + Fe(NO3)2 -> NH4NO3 + FEs 25. Fe +CuSO4 -> Cu + Fe2(SO4)3
Asked by Rachel A - Tue Mar 11 22:31:53 2008 - - 1 Answers - 0 Comments
A. 21. AgNO3 + KCl ==> AgCl + KNO3 22. 3Mg(OH)2 + 2H3PO4 ==> Mg3(PO4)2 + 6H20 23. FeS +2HCl ==> FeCl2 + H2S 24. (NH4)2S + Fe(NO3)2 ==> 2NH4NO3 + FeS 25. 2Fe +3CuSO4 ==> 3Cu + Fe2(SO4)3 However, these are the easiest to balance. I mean you have to practice, otherwise you would have no clue late on.
Answered by Hahaha - Thu Mar 13 18:51:38 2008
HELPPPPP! Names and Compounds of the following!!!!!!!!!?
Q. Need Help giving the Names and Formulas for the following Compounds? 1.) Barium chloride= 2.) Zinc fluoride= 3.) Potassium chromate= 4.)Iron(3)chloride= 5.)Copper(1)sulfide= 6.)Silver carbonate= 7.)(NH4)2S= 8.)CrBr3= 9.)HCL(aq)= 10.)Zinc nitrite= 11.)Potassium permanganate= 12.)Titanium(4)bromide= 13.)Manganese(4)sulfide= 14.)Magnesium bicarbonate= 15.)Lead(2)acetate= 16.)Arsenic(3)iodide= 17.)Sb2O5= 18.)BaH2= 19.)As(NO2)5= 20.)CrF3= 21.)Cu(OH)2= 22.)Ammonium hydrogen carbonate= 23.)Hydrogen sulfide= 24.)Barium hydroxide= 25.)Carbon tertrachloride= 26.)Lead(2)nitrate= 27.)Carbonic acid= 28.)Copper(1)carbonate= 29.)Calcium cyanide= 30.)Copper(2)bromide= 31.)Chromium (3)sulfite= 32.)Carbon disulfide= 33.)Alumin [cont.]
Asked by danie - Tue Oct 2 09:14:27 2007 - - 4 Answers - 0 Comments
A. OMG really OMG... go read up on Chemistry seriously=) 1.BaCl2 2. ZnF2 3. K2Cr2O7 4. FeCl3 5. CuS 6. Ag2CO3 7. ammonium sulphide 8. chromium(III) bromide 9. hydrochloric acid 10. Zn(NO2)2 11. KMnO4 12. TiBr4 13. MnS4 14. Mg(CO3)2 15. CH3COO2Pb 16. AsI3 17. antimony(V) oxide 18. barium hydride 19. arsenic(V) nitrite 20. chromium(III) fluoride 21. copper(II) hydroxide 22. (NH4)HCO3 23. HS 24. Ba(OH)2 25. CCl4 26. Pb(NO3)2 27. H2CO3 28. Cu2CO3 29. Ca(CN)2 30. CuBr2 31. Cr2(SO3)3 32. CS2 33.AlF3 Hope i am correct.
Answered by anonymous - Tue Oct 2 09:53:00 2007
Q. Need Help giving the Names and Formulas for the following Compounds? 1.) Barium chloride= 2.) Zinc fluoride= 3.) Potassium chromate= 4.)Iron(3)chloride= 5.)Copper(1)sulfide= 6.)Silver carbonate= 7.)(NH4)2S= 8.)CrBr3= 9.)HCL(aq)= 10.)Zinc nitrite= 11.)Potassium permanganate= 12.)Titanium(4)bromide= 13.)Manganese(4)sulfide= 14.)Magnesium bicarbonate= 15.)Lead(2)acetate= 16.)Arsenic(3)iodide= 17.)Sb2O5= 18.)BaH2= 19.)As(NO2)5= 20.)CrF3= 21.)Cu(OH)2= 22.)Ammonium hydrogen carbonate= 23.)Hydrogen sulfide= 24.)Barium hydroxide= 25.)Carbon tertrachloride= 26.)Lead(2)nitrate= 27.)Carbonic acid= 28.)Copper(1)carbonate= 29.)Calcium cyanide= 30.)Copper(2)bromide= 31.)Chromium (3)sulfite= 32.)Carbon disulfide= 33.)Alumin [cont.]
Asked by danie - Tue Oct 2 09:14:27 2007 - - 4 Answers - 0 Comments
A. OMG really OMG... go read up on Chemistry seriously=) 1.BaCl2 2. ZnF2 3. K2Cr2O7 4. FeCl3 5. CuS 6. Ag2CO3 7. ammonium sulphide 8. chromium(III) bromide 9. hydrochloric acid 10. Zn(NO2)2 11. KMnO4 12. TiBr4 13. MnS4 14. Mg(CO3)2 15. CH3COO2Pb 16. AsI3 17. antimony(V) oxide 18. barium hydride 19. arsenic(V) nitrite 20. chromium(III) fluoride 21. copper(II) hydroxide 22. (NH4)HCO3 23. HS 24. Ba(OH)2 25. CCl4 26. Pb(NO3)2 27. H2CO3 28. Cu2CO3 29. Ca(CN)2 30. CuBr2 31. Cr2(SO3)3 32. CS2 33.AlF3 Hope i am correct.
Answered by anonymous - Tue Oct 2 09:53:00 2007
Write complete ionic and net ionic equations for each of the following reactions.?
Q. a.) H3PO4 + 3RbOH >> 3H2O + Rb3PO4 b.) HCl + NH4OH >> H2O + NH4Cl c.) 2HI + (NH4)2S >> H2S + 2NH4I d.) HNO3 + KCN >> HCN + KNO3
Asked by quincyboi06 - Tue Mar 11 16:58:10 2008 - - 3 Answers - 0 Comments
A. a) H3^(+)+3OH^(-)-->3H2O 3Rb^(+)+PO4^(-3)-->Rb3PO4 b) H^(+)+OH^(-)-->H2O NH4^(+)+Cl^(-)-->NH4Cl You should be able to do the rest.
Answered by Alex H - Tue Mar 11 17:05:23 2008
Q. a.) H3PO4 + 3RbOH >> 3H2O + Rb3PO4 b.) HCl + NH4OH >> H2O + NH4Cl c.) 2HI + (NH4)2S >> H2S + 2NH4I d.) HNO3 + KCN >> HCN + KNO3
Asked by quincyboi06 - Tue Mar 11 16:58:10 2008 - - 3 Answers - 0 Comments
A. a) H3^(+)+3OH^(-)-->3H2O 3Rb^(+)+PO4^(-3)-->Rb3PO4 b) H^(+)+OH^(-)-->H2O NH4^(+)+Cl^(-)-->NH4Cl You should be able to do the rest.
Answered by Alex H - Tue Mar 11 17:05:23 2008
Qualitative Analysis Help?
Q. Question # 1 When a solution containing an unknown number of metal ions is treated with dilute HCl, no precipitate forms. The pH is adjusted to about 1, and H2S is bubbled through. Again no precipitate forms. The pH of the solution is then adjusted to about 8 and treated with (NH4)2S. This time a precipitate forms. The filtrate from this solution is not tested. Which groups of metal ions are either known to be present or cannot be excluded? A. Group III and Group IV B. Group III only C. Group II and Group IV D. Group IV only E. Group I and Group IV Question # 2 In the course of various qualitative analysis procedures, the following mixture is encountered: Na+ and K+. Suggest how this mixture might be separated. You may need to refer to… [cont.]
Asked by whiteguy0117 - Mon Feb 23 05:04:42 2009 - - 1 Answers - 0 Comments
A. Question # 1 A. Group III and Group IV Question # 2 E. It is not possible to separate the ions using any reaction scheme found in either Zumdahl or your lab manual.
Answered by unknown - Thu Feb 26 04:11:22 2009
Q. Question # 1 When a solution containing an unknown number of metal ions is treated with dilute HCl, no precipitate forms. The pH is adjusted to about 1, and H2S is bubbled through. Again no precipitate forms. The pH of the solution is then adjusted to about 8 and treated with (NH4)2S. This time a precipitate forms. The filtrate from this solution is not tested. Which groups of metal ions are either known to be present or cannot be excluded? A. Group III and Group IV B. Group III only C. Group II and Group IV D. Group IV only E. Group I and Group IV Question # 2 In the course of various qualitative analysis procedures, the following mixture is encountered: Na+ and K+. Suggest how this mixture might be separated. You may need to refer to… [cont.]
Asked by whiteguy0117 - Mon Feb 23 05:04:42 2009 - - 1 Answers - 0 Comments
A. Question # 1 A. Group III and Group IV Question # 2 E. It is not possible to separate the ions using any reaction scheme found in either Zumdahl or your lab manual.
Answered by unknown - Thu Feb 26 04:11:22 2009
complete and balance the following chemical reactions?
Q. (a)NaCL(s)+AgNO3(aq) (b) BaCl2(s)+H2SO4(aq) (c) NaCO3(s)+HCL(aq) (d) H2SO4(aq)+NH4OH(aq) (e) KOH(s)+ H3PO4(aq) (f) ZnCL(aq)+(NH4)2S(aq) thanks
Asked by Yomi B - Tue Aug 14 07:55:37 2007 - - 2 Answers - 0 Comments
A. (a) NaCl (s) + AgNO3 (aq) >> AgCl (s) + NaNO3 (aq) (b) BaCl2 (s) + H2SO4 (aq) >> BaSO4 (s) + 2 HCl (aq) (c) Na2CO3 ( s) + 2 HCl (aq) >> H2CO3 (aq) + 2 NaCl (aq) (d) H2SO4 (aq) + 2 NH4OH (aq) >> (NH4)2SO4 (aq) + + 2 H2O(l) (e) 3 KOH (s) + H3PO4 (aq) >> K3PO4 (aq) + 3 H2O(l) (f) ZnCl2 (s) + (NH4)2S (aq) >> ZnS(s) + 2 NH4CL (aq)
Answered by Dr.A - Tue Aug 14 08:16:42 2007
Q. (a)NaCL(s)+AgNO3(aq) (b) BaCl2(s)+H2SO4(aq) (c) NaCO3(s)+HCL(aq) (d) H2SO4(aq)+NH4OH(aq) (e) KOH(s)+ H3PO4(aq) (f) ZnCL(aq)+(NH4)2S(aq) thanks
Asked by Yomi B - Tue Aug 14 07:55:37 2007 - - 2 Answers - 0 Comments
A. (a) NaCl (s) + AgNO3 (aq) >> AgCl (s) + NaNO3 (aq) (b) BaCl2 (s) + H2SO4 (aq) >> BaSO4 (s) + 2 HCl (aq) (c) Na2CO3 ( s) + 2 HCl (aq) >> H2CO3 (aq) + 2 NaCl (aq) (d) H2SO4 (aq) + 2 NH4OH (aq) >> (NH4)2SO4 (aq) + + 2 H2O(l) (e) 3 KOH (s) + H3PO4 (aq) >> K3PO4 (aq) + 3 H2O(l) (f) ZnCl2 (s) + (NH4)2S (aq) >> ZnS(s) + 2 NH4CL (aq)
Answered by Dr.A - Tue Aug 14 08:16:42 2007
Chemistry compounds, please check if I'm correct.?
Q. 1. (NH4)2S Ammonium sulfide 2. NiF2 Nickel (ll) fluoride 3. Sb(ClO3)3 Antimony (lll) chlorate 4. HgCl2 Mercury (ll) chloride 5. H2SO4(aq) Sulfuric acid 6. CrBr3 Chromium (lll) bromide 7. Cu2CO3 Copper (l) carbonate -or- Cuprous carbonate 8. K2Cr2O7 Potassium dichromate 9. FeSO4 Iron (ll) sulfate -or- Ferrous sulfate 10. AgC2H3O2 Silver nitrate 11. HCl Hydrogen chloride 12. HCl(aq) Hydrochloric acid 13. KBrO3 Potassium bromate 14. Cd(ClO2)2 Cadmium (ll) chloride
Asked by Swany - Fri Sep 28 05:49:44 2007 - - 4 Answers - 0 Comments
A. number 10 is wrong its hould be silver acetate and 14 should be cadmium chlorite
Answered by uday k - Fri Sep 28 07:33:36 2007
Q. 1. (NH4)2S Ammonium sulfide 2. NiF2 Nickel (ll) fluoride 3. Sb(ClO3)3 Antimony (lll) chlorate 4. HgCl2 Mercury (ll) chloride 5. H2SO4(aq) Sulfuric acid 6. CrBr3 Chromium (lll) bromide 7. Cu2CO3 Copper (l) carbonate -or- Cuprous carbonate 8. K2Cr2O7 Potassium dichromate 9. FeSO4 Iron (ll) sulfate -or- Ferrous sulfate 10. AgC2H3O2 Silver nitrate 11. HCl Hydrogen chloride 12. HCl(aq) Hydrochloric acid 13. KBrO3 Potassium bromate 14. Cd(ClO2)2 Cadmium (ll) chloride
Asked by Swany - Fri Sep 28 05:49:44 2007 - - 4 Answers - 0 Comments
A. number 10 is wrong its hould be silver acetate and 14 should be cadmium chlorite
Answered by uday k - Fri Sep 28 07:33:36 2007
LAST MINUTE HELP on DOUBLE DISPLACEMENT REACTIONS?
Q. I am a little confused about these equations below. I will give you the question and some of my answers for it. I want to see if I am doing these right. Please give me your answer for the following equations even if I am correct or incorrect.Thank you. Also, for this equation: ZnBr2 + 2K3PO4 --> Someone gave me the answer as follows: 3ZnBr2 +2KPO4 ---> Zn3(PO4)2 +6KBr. Now you see the # 3 under Zn3 above. I wanted to know since I put a whole of 3 in front of Zn to the left side of the equation, how come there is not a whole number of 3 in front of Zn toward the right side of the equation? Here are the equations: a)K2CrO4 + Pb(NO3)2 --> I got: PbCrO4 + 2K(NO3)2 b)NaC2H3O2 + HCL --> I got: NaCl + C2H4O2 c)BiCl3 + H2S --> I got: BiS(Laugh [cont.]
Asked by danie - Tue Oct 23 02:40:40 2007 - - 2 Answers - 0 Comments
A. 3ZnBr2 +2 K3PO4 >> Zn3(PO4)2 +6 KBr K2CrO4 + Pb(NO3)2 >> PbCrO4 + 2KNO3 NaC2H3O2 + HCl >>NaCl + C2H4O2 2BiCl3 + 3H2S >> Bi2S3 +6 HCl 2H3PO4 +3 Ca(OH)2 >> Ca3(PO4)2 +6 H2O K2CO3 + NiBr2 >> NiCO3 + 2KBr 2K + Cl2 >> 2KCl BaO + H2O >> Ba(OH)2 SO3 + H2O >> H2SO4 Ni + 2 HCl >> NiCl2 + H2 Cl2 + 2 NaI >> 2NaCl + I2 3 KOH + H3PO4 >> K3PO4 + 3H2O ZnCl2 + (NH4)S >>ZnS + 2NH4Cl
Answered by Dr.A - Tue Oct 23 03:37:56 2007
Q. I am a little confused about these equations below. I will give you the question and some of my answers for it. I want to see if I am doing these right. Please give me your answer for the following equations even if I am correct or incorrect.Thank you. Also, for this equation: ZnBr2 + 2K3PO4 --> Someone gave me the answer as follows: 3ZnBr2 +2KPO4 ---> Zn3(PO4)2 +6KBr. Now you see the # 3 under Zn3 above. I wanted to know since I put a whole of 3 in front of Zn to the left side of the equation, how come there is not a whole number of 3 in front of Zn toward the right side of the equation? Here are the equations: a)K2CrO4 + Pb(NO3)2 --> I got: PbCrO4 + 2K(NO3)2 b)NaC2H3O2 + HCL --> I got: NaCl + C2H4O2 c)BiCl3 + H2S --> I got: BiS(Laugh [cont.]
Asked by danie - Tue Oct 23 02:40:40 2007 - - 2 Answers - 0 Comments
A. 3ZnBr2 +2 K3PO4 >> Zn3(PO4)2 +6 KBr K2CrO4 + Pb(NO3)2 >> PbCrO4 + 2KNO3 NaC2H3O2 + HCl >>NaCl + C2H4O2 2BiCl3 + 3H2S >> Bi2S3 +6 HCl 2H3PO4 +3 Ca(OH)2 >> Ca3(PO4)2 +6 H2O K2CO3 + NiBr2 >> NiCO3 + 2KBr 2K + Cl2 >> 2KCl BaO + H2O >> Ba(OH)2 SO3 + H2O >> H2SO4 Ni + 2 HCl >> NiCl2 + H2 Cl2 + 2 NaI >> 2NaCl + I2 3 KOH + H3PO4 >> K3PO4 + 3H2O ZnCl2 + (NH4)S >>ZnS + 2NH4Cl
Answered by Dr.A - Tue Oct 23 03:37:56 2007
chemisty help! balancing net ionic equations?
Q. Write a balanced net ionic equation for each reaction. Pb(NO3)2(aq) + H2SO4(aq) PbSO4(s) + HNO3(aq) Pb(C2H3O2)2(aq) + HCl(aq) PbCl2(s) + HC2H3O2(aq) Na3PO4(aq) + FeCl3(aq) NaCl(aq) + FePO4(s) (NH4)2S(aq) + Co(NO3)2(aq) CoS(s) + NH4NO3(aq) (33)Write a balanced net ionic equation for each reaction. Identify the spectator ions in each reaction. HCl(aq) + AgNO3(aq) Pb(C2H3O2)2(aq) + LiCl(aq) Na3PO4(aq) + CrCl3(aq) (34)Identify the precipitate formed when solutions of these ionic compounds are mixed. H2SO4 + BaCl2 Al2(SO4)3 + NH4OH AgNO3 + H2S CaCl2 + Pb(NO3)2 Ca(NO3)2 + Na2CO3 (35)Will a precipitate form when the following aqueous solutions of ionic compounds are mixed? AgNO3 and Na2SO4 NH4Cl and Ba(N [cont.]
Asked by china12 - Fri Mar 27 11:16:21 2009 - - 1 Answers - 0 Comments
A. Pb2+ + SO42- = PbSO4 Pb2+ + 2 Cl- = PbCl2 PO43- + Fe3+ = FePO4 S2- + Co2+ = CoS Cl- + Ag+ = AgCl (s) ( H+ and NO3- spectator ions) Pb2+ + 2 Cl- =PbCl2 (C2H3O2- and Li+ spectator ions) Cr3+ + PO43- = CrPO4 ( Na+ and Cl- spectator ions) BaSO4 Al(OH)3 Ag2S PbCl2 CaCO3 Ag2SO4 no precipitate CaSO4 PbCl2
Answered by Dr.A - Fri Mar 27 12:02:19 2009
Q. Write a balanced net ionic equation for each reaction. Pb(NO3)2(aq) + H2SO4(aq) PbSO4(s) + HNO3(aq) Pb(C2H3O2)2(aq) + HCl(aq) PbCl2(s) + HC2H3O2(aq) Na3PO4(aq) + FeCl3(aq) NaCl(aq) + FePO4(s) (NH4)2S(aq) + Co(NO3)2(aq) CoS(s) + NH4NO3(aq) (33)Write a balanced net ionic equation for each reaction. Identify the spectator ions in each reaction. HCl(aq) + AgNO3(aq) Pb(C2H3O2)2(aq) + LiCl(aq) Na3PO4(aq) + CrCl3(aq) (34)Identify the precipitate formed when solutions of these ionic compounds are mixed. H2SO4 + BaCl2 Al2(SO4)3 + NH4OH AgNO3 + H2S CaCl2 + Pb(NO3)2 Ca(NO3)2 + Na2CO3 (35)Will a precipitate form when the following aqueous solutions of ionic compounds are mixed? AgNO3 and Na2SO4 NH4Cl and Ba(N [cont.]
Asked by china12 - Fri Mar 27 11:16:21 2009 - - 1 Answers - 0 Comments
A. Pb2+ + SO42- = PbSO4 Pb2+ + 2 Cl- = PbCl2 PO43- + Fe3+ = FePO4 S2- + Co2+ = CoS Cl- + Ag+ = AgCl (s) ( H+ and NO3- spectator ions) Pb2+ + 2 Cl- =PbCl2 (C2H3O2- and Li+ spectator ions) Cr3+ + PO43- = CrPO4 ( Na+ and Cl- spectator ions) BaSO4 Al(OH)3 Ag2S PbCl2 CaCO3 Ag2SO4 no precipitate CaSO4 PbCl2
Answered by Dr.A - Fri Mar 27 12:02:19 2009
Can some one find the net ionic equations for these reactions?
Q. a.) Pb(NO3)2(aq) + H2SO4(aq) = PbSO4(s) + HNO3(aq) b.) Pb(C2H3O2)2(aq) + HCl(aq) = PbCl2 + HC2H3O2(aq) c.) Na3PO4(aq) + FeCl3(aq) = NaCl(aq) + FePO4(s) d.) (NH4)2S(aq) + Co(NO3)2(aq) = CoS(s) + NH4NO3(aq)
Asked by jonasbrothersjew - Fri Jan 9 00:24:46 2009 - - 1 Answers - 0 Comments
A. i can tell you HOW to find them. and i'll do the first as an example. first thing you always do is balance the equation. then you have to break the aqueous compounds into ions, and keep the solid ones as compounds (include the charges for the ions, and the coefficients) it'll be long, yea i know. then you see if you can cancel some of the ions. for instance if you have 2 of an ion on the reactants, and 2 of the same ion on the products side, then you can cross it out. k so first one... (in the parantheses are the charges) and i'm not going to include the states (aq, s) cause i'm lazy and it makes it look complicates, but don't forget to do it! and in case you're wondering, all ions are aqueous. a) balanced: Pb(NO3)2 + H2SO4 = PbSO4 +… [cont.]
Answered by hp_fan - Fri Jan 9 00:36:36 2009
Q. a.) Pb(NO3)2(aq) + H2SO4(aq) = PbSO4(s) + HNO3(aq) b.) Pb(C2H3O2)2(aq) + HCl(aq) = PbCl2 + HC2H3O2(aq) c.) Na3PO4(aq) + FeCl3(aq) = NaCl(aq) + FePO4(s) d.) (NH4)2S(aq) + Co(NO3)2(aq) = CoS(s) + NH4NO3(aq)
Asked by jonasbrothersjew - Fri Jan 9 00:24:46 2009 - - 1 Answers - 0 Comments
A. i can tell you HOW to find them. and i'll do the first as an example. first thing you always do is balance the equation. then you have to break the aqueous compounds into ions, and keep the solid ones as compounds (include the charges for the ions, and the coefficients) it'll be long, yea i know. then you see if you can cancel some of the ions. for instance if you have 2 of an ion on the reactants, and 2 of the same ion on the products side, then you can cross it out. k so first one... (in the parantheses are the charges) and i'm not going to include the states (aq, s) cause i'm lazy and it makes it look complicates, but don't forget to do it! and in case you're wondering, all ions are aqueous. a) balanced: Pb(NO3)2 + H2SO4 = PbSO4 +… [cont.]
Answered by hp_fan - Fri Jan 9 00:36:36 2009
CHEM again Please?
Q. The total mass of reactants equals the total mass of the products is which law: a. Conservation of Molecules b. Conservation of Energy c.Conservation of Mass d. Conservation of Elements What do the coefficients in a balanced chemical equation tell you? a. amount of energy produced b. number of moles which react c. physical state of the compounds reacting d. elements involved in the reaction In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? a. H2 b. O2 c. H2O d, A and b only e. All of the above What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 a. 1,2,2,2 b.1,2,1,1 c.2,4,2,2 d. none of the… [cont.]
Asked by Chris S - Sun Mar 9 23:57:37 2008 - - 4 Answers - 0 Comments
A. 1c 2b 3d 4b 5c
Answered by unknown - Mon Mar 10 00:07:18 2008
Q. The total mass of reactants equals the total mass of the products is which law: a. Conservation of Molecules b. Conservation of Energy c.Conservation of Mass d. Conservation of Elements What do the coefficients in a balanced chemical equation tell you? a. amount of energy produced b. number of moles which react c. physical state of the compounds reacting d. elements involved in the reaction In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? a. H2 b. O2 c. H2O d, A and b only e. All of the above What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 a. 1,2,2,2 b.1,2,1,1 c.2,4,2,2 d. none of the… [cont.]
Asked by Chris S - Sun Mar 9 23:57:37 2008 - - 4 Answers - 0 Comments
A. 1c 2b 3d 4b 5c
Answered by unknown - Mon Mar 10 00:07:18 2008
chem help! easy questions?
Q. 6. The total mass of reactants equals the total mass of the products is which law: A. Conservation of Molecules B. Conservation of Energy C. Conservation of Mass D. Conservation of Elements 7. What do the coefficients in a balanced chemical equation tell you? A. amount of energy produced B. number of moles which react C. physical state of the compounds reacting D. elements involved in the reaction 8. In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? A. H2 B. O2 C. H2O D. A and b only E. All of the above 9. What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 A. 1,2,2,2 B. 1,2,1,1 C. 2,4,2,2 D. none of the above 10. How do you know if an equation… [cont.]
Asked by AngelFood F - Mon Jul 21 18:32:38 2008 - - 2 Answers - 0 Comments
A. Actually 6. C 7. B 8. C 9. B 10. C 11. C 12. C 13. C 14. B 15. D 16. B 17. C 18. D 19. A 20. C
Answered by Kel - Fri Jul 25 13:21:19 2008
Q. 6. The total mass of reactants equals the total mass of the products is which law: A. Conservation of Molecules B. Conservation of Energy C. Conservation of Mass D. Conservation of Elements 7. What do the coefficients in a balanced chemical equation tell you? A. amount of energy produced B. number of moles which react C. physical state of the compounds reacting D. elements involved in the reaction 8. In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? A. H2 B. O2 C. H2O D. A and b only E. All of the above 9. What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 A. 1,2,2,2 B. 1,2,1,1 C. 2,4,2,2 D. none of the above 10. How do you know if an equation… [cont.]
Asked by AngelFood F - Mon Jul 21 18:32:38 2008 - - 2 Answers - 0 Comments
A. Actually 6. C 7. B 8. C 9. B 10. C 11. C 12. C 13. C 14. B 15. D 16. B 17. C 18. D 19. A 20. C
Answered by Kel - Fri Jul 25 13:21:19 2008
Can someone check these equations please?
Q. I have to write the balanced equations, not the net-ionics HCl + Mg3(PO4)2(s) --> MgCl2(aq) + H3PO4(aq) 2HBr + FeS(s) --> H2S(g) + FeBr2(aq) H2O2 + SO3(2-) --> H2O + SO4(2-) (NH4)2S + 2AgBr --> Ag2S(s) + 2NH4Br(aq) 2HCl + Na2CrO4 --> H2CrO4(aq) + 2NaCl(aq) -I'm thinking the H2CrO4 might decompose, but I'm not sure. Thanks
Asked by zaza_410 - Sun Apr 6 10:05:18 2008 - - 1 Answers - 0 Comments
Q. I have to write the balanced equations, not the net-ionics HCl + Mg3(PO4)2(s) --> MgCl2(aq) + H3PO4(aq) 2HBr + FeS(s) --> H2S(g) + FeBr2(aq) H2O2 + SO3(2-) --> H2O + SO4(2-) (NH4)2S + 2AgBr --> Ag2S(s) + 2NH4Br(aq) 2HCl + Na2CrO4 --> H2CrO4(aq) + 2NaCl(aq) -I'm thinking the H2CrO4 might decompose, but I'm not sure. Thanks
Asked by zaza_410 - Sun Apr 6 10:05:18 2008 - - 1 Answers - 0 Comments
Chemistry Help Needed Please? Urgent? Multiple Choice?
Q. 1. In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? a) H2 b) O2 c) H2O d) A and b only e) All of the above 2. What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 a) 1,2,2,2 b) 1,2,1,1 c) 2,4,2,2 d) none of the above 3. How do you know if an equation is balanced? a) there are no unwritten coefficients b) reactant and product coefficients are equal c) number of element atoms in reactants equal element atom on product side d) all coefficients are divisible by two 4. How many atoms of hydrogen are present in (NH4)2S? a) 4 b) 10 c) 8 d) 11 5. Correctly balance the following: Fe(OH)3 a Fe2O3 + H2O a) 4Fe(OH)3 a2Fe2O3 +… [cont.]
Asked by antonia - Sat Mar 21 14:41:34 2009 - - 2 Answers - 0 Comments
A. 1. d - the reactants are before the arrow. products are after 2. b - balance Cl first throughout the equation and the rest is fine 3. c - you can't destroy or create atoms, they are only rearrange, therefore there has to be the same number on each side of the equation. 4. c - multiply the subscript inside and outside of the parantheses. 5. c - find the common denominator between the hydrogens which is six, then multiply each side of the equation so that there are 6 Hydrogens on each side. Make sure that there are the same number of atoms for each element on each side of the equation
Answered by salam bhai - Sat Mar 21 14:52:09 2009
Q. 1. In the equation, 2 H2 + O2 ---> 2 H2O, what substances are the reactants? a) H2 b) O2 c) H2O d) A and b only e) All of the above 2. What are the proper coefficients to balance the following equation: Zn + HCl a ZnCl2 + H2 a) 1,2,2,2 b) 1,2,1,1 c) 2,4,2,2 d) none of the above 3. How do you know if an equation is balanced? a) there are no unwritten coefficients b) reactant and product coefficients are equal c) number of element atoms in reactants equal element atom on product side d) all coefficients are divisible by two 4. How many atoms of hydrogen are present in (NH4)2S? a) 4 b) 10 c) 8 d) 11 5. Correctly balance the following: Fe(OH)3 a Fe2O3 + H2O a) 4Fe(OH)3 a2Fe2O3 +… [cont.]
Asked by antonia - Sat Mar 21 14:41:34 2009 - - 2 Answers - 0 Comments
A. 1. d - the reactants are before the arrow. products are after 2. b - balance Cl first throughout the equation and the rest is fine 3. c - you can't destroy or create atoms, they are only rearrange, therefore there has to be the same number on each side of the equation. 4. c - multiply the subscript inside and outside of the parantheses. 5. c - find the common denominator between the hydrogens which is six, then multiply each side of the equation so that there are 6 Hydrogens on each side. Make sure that there are the same number of atoms for each element on each side of the equation
Answered by salam bhai - Sat Mar 21 14:52:09 2009
From Yahoo Answer Search: '(NH4)2S HCl'
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