what is chemical formulae for: (a)lead (II) hydroxide (b) Copper Nitrate (c) Calcium Phosphate?? cheers?
Q. what is chemical formulae for: (a)lead (II) hydroxide (b) Copper Nitrate (c) Calcium Phosphate?? cheers?
Asked by yehboi - Mon Jul 28 03:37:46 2008 - - 2 Answers - 0 Comments

What are the chemical formulas for compounds aluminum hydroxide and magnesium hydroxide.?
Q. What are the chemical formulas for the compounds aluminum hydroxide and magnesium hydroxide. Also, what are the chemical formulas for the compounds sodium bicarbonate, calcium phosphate and sodium aluminum sulfate. I am having serious difficulty with these chemical formulas. Any help is greatly appreciated!
Asked by Honey Bee - Fri Sep 4 14:41:58 2009 - - 2 Answers - 0 Comments

A. Al(OH)3 Mg(OH)2 NaHCO3 Ca3(PO4)2 NaAl(SO4)2
Answered by Dr.A - Fri Sep 4 14:46:07 2009

Which of the following ionic compounds contains at least ten total atoms in its chemical formula? ?
Q. Which of the following ionic compounds contains at least ten total atoms in its chemical formula? 1.barium phosphate 2.magnesium carbonate 3.ammonium nitrite 4.calcium hypochlorite
Asked by Himani B - Wed Jan 28 12:48:35 2009 - - 1 Answers - 0 Comments

A. 1. Barium phosphate Barium phosphate: Ba3(PO4)2, it's like: Ba3P2O8; 13 atoms. Magnesium carbonate: MgCO3: 5 atoms Ammonium nitrate: NH4NO3: 9 atoms Calcium hypochlorite: Ca(ClO)2, it's like: CaCl2O2: 5 atoms.
Answered by RigelKent - Wed Jan 28 12:54:12 2009

What are the chemical formula for the followng ionic compunds?
Q. Potassium sulfate aluminum oxide beryllium hydroxide sodium nitrate tin(IV) cloride iron (III) hrdroxide copper (I) sulfate magnesium phosphate iron (III) sulfite shromium (III phosphide strontium bicarbonate ammonium phosphate magnesium chloride zinc bromide calcium floride aluminum carbonate potassium chromate lithium phosphate
Asked by Mannings#1fan! SB 2008-2009! - Tue Nov 27 10:10:39 2007 - - 3 Answers - 0 Comments

A. K2SO4 Al2O3 Be(OH)2 NaNO3 SnCl4 Fe(OH)3 Cu2SO4 Mg3(PO4)2 Fe2(SO3)3 CrP SrHCO3 (NH4)3PO4 MgCl2 ZnBr2 CaF2 Al2(CO3)3 K2CrO4 Li3PO4
Answered by ronaq - Tue Nov 27 10:20:14 2007

test, help.. =/ its chemistry !! Where are my chemistry lovers at?
Q. Multiple Choice 1. What is the correct chemical formula for sodium chloride? a. NaCl b. Na2Cl2 c. SoCl d. NaCl2 2. What is the correct chemical formula for barium nitride? a. Ba(NO3)2 b. BaN c. B3N2 d. Ba3N2 3. What is the correct chemical name for potassium sulfide? a. P2S b. K2S c. KS d. PS 4. What is the correct chemical name for FeCl3 ? a. iron chloride b. iron (III) chloride c. iron chloride (III) d. iron (III) chlorine 5. What is the correct chemical formula for calcium phosphate? a. Ca3(PO4)2 b. CaPO4 c. Ca2(PO3)3 d. Ca2(PO4)3 6. What is the correct chemical formula for ammonium dichromate? a. 2NH4Cr2O7 b. (NH4)2Cr2O7 c. NH4(Cr2O7)2 d. (NH4)2CrO4 7. What is the correct chemical formula for mercury (II)… [cont.]
Asked by higherlearning - Tue Sep 1 01:10:53 2009 - - 1 Answers - 0 Comments

A. Hi, Its acdbcdaacbdbbcacdccbcad
Answered by Sarko - Tue Sep 1 01:18:19 2009

chemical formulas? How do I name these?
Q. 1.Write a formula for the compound that forms from calcium and carbonate. 2.Write a formula for the compound that forms from calcium and phosphate. 3.Write a formula for the compound that forms from calcium and hydroxide. 4.Write a formula for the compound that forms from calcium and hydrogen phosphate.
Asked by Digz - Thu Oct 15 21:33:06 2009 - - 2 Answers - 0 Comments

A. 1. CaCO3, or calcium carbonate 2. Ca3(PO4)2, or calcium phosphate. 3.Ca(OH)2, or calcium hydroxide. 4.CaHPO4, or calcium hydrogen phosphate
Answered by LayZ - Thu Oct 15 21:44:27 2009

Write a formula for each of the following ionic compounds.?
Q. Copper(II) chloride. Copper (I) iodate. Lead(II) chromate. Calcium fluoride. Potassium hydroxide. Iron(II) phosphate. Express your answer as a chemical formula.
Asked by kkkk - Wed Jan 28 14:11:42 2009 - - 3 Answers - 0 Comments

A. CuCl2 CuIO3 PbCrO4 CaF2 KOH Fe3(PO4)2 Hope this helps! :)
Answered by unknown - Sat Jan 31 17:12:00 2009

write the chemical formula?
Q. 1-pot.acetate 2-amm.sulphate 3-zinc.phosphate 4-calcium oxide 5-aluminium sulphide ***Name the following 1-MgCL2 2-Cu(NO3)2 3-Li2(so4) 4-Ca(OH)2 5-FeSO4 6-H2SO4
Asked by mohamed r - Tue Oct 30 14:19:07 2007 - - 2 Answers - 0 Comments

A. 1 KC2H3O2 2 (NH4)2SO4 3 Zn3(PO4)2 4 CaO 5 Al2S3 Magnesium chloride Cupric nitrate or copper(II) nitrate Lithium sulfate Calcium hydroxide Ferrous sulfate or iron(II) sulfate Sulfuric acid
Answered by steve_geo1 - Tue Oct 30 14:24:26 2007

help with chemical compound formulas?
Q. hey can you please tell me the chemical formulas for any or all of the following chemical compounds? i'd really appreciate it. here they are: nickel (II) hydrogen phosphate cobalt (III) permanganate potassium thiosulphate hydrogen peroxide ruthenium (IV) iodide zinc silicate sodium hydroxide mercury (I) chloride magnesium phosphate calcium carbonate gold (I) cyanide lithium oxalate tin (IV) perchlorate iron (II) borate chromium (III) hypochlorite thank you.
Asked by kstar1012 - Sun Jan 27 15:03:35 2008 - - 1 Answers - 0 Comments

A. NiHPO4 Co(MnO4)3 K2S2O3 H2O2 RuO2 Zn2SiO4 NaOH HgCl Mg3(PO4)2 CaCO3 AuCN Li2C2O4 Sn(ClO4)4 Fe3(BO3)2 Cr(ClO)3
Answered by Dr.A - Sun Jan 27 15:25:28 2008

chemistry help?
Q. whats the chemical formula, list elements, and formula mass for calcium phosphate?
Asked by Dyphya - Mon Dec 31 22:50:35 2007 - - 2 Answers - 0 Comments

A. since it is an ionic compound.. a cation (positive) calcium (Ca) plus an anion (negative) phosphate (PO4).. calcium having a net charge of +2 and phosphate with -3 so do the criss cross and their charges shall be interchanged as subscript.. it shall be Ca3(PO4)2 there are just 3 element concerned, it is calcium, phosphorus and oxygen.. formula mass is calculated is this way Ca=40(atomic mass) x 3 (subscript) = 120 P= 31 x 2 (since 2 is distributed to both oxygen and phosphorus and the original subcript of P is 1 so 1x2=2)=62 and for O = 16 x 8 (since 2 is distributed as stated) = 128 and add all the products 120+62+128=? you'll get 310 and the unit is a.m.u or atomic mass unit
Answered by notsmartnotdumb - Tue Jan 1 00:42:32 2008

Balancing chemical formulas? stoichiometry & Redox?
Q. what is the balanced formula equation for: calcium chloride is added to sodium phosphate? what are the complete ionic equation for the reaction above? what is the net ionic equation for this reaction? what are the spectator ions
Asked by Kool Man - Tue Feb 24 20:15:00 2009 - - 1 Answers - 0 Comments

A. Formula Equation 3 CaCl2 (aq) + 2 Na3PO4 (aq) Ca3(PO4)2 (s) + 6 NaCl (aq) Complete Ionic Equation 3 Ca++ (aq) + 6 Cl- (aq) + 6 Na+ (aq) + 2 PO4--- (aq) Ca3(PO4)2 (s) + 6 Cl- (aq) + 6 Na+ (aq) Net Ionic Equation 3 Ca++ (aq) + 2 PO4--- (aq) Ca3(PO4)2 (s) Spectator Ions Cl-, Na+ There was no change of charge on any species, so this is not a redox reaction.
Answered by Glenguin - Fri Feb 27 17:45:05 2009

Will someone please explain to me how to Convert Chemical Names into Chemical Formulas!?
Q. I would like to have this explained to me in a way that I understand...PLEASE because I am getting different answers than others. For those of you who are magnificant and doing this... what are some learning pointers that you can share? Thank you so much! Phosphoric acid reacts with calcium hydroxie to produce calcium phosphate and water. Hydrochloric acid reacts with iron (II) and hydrogen peroxide to form iron (III) chloride and water. Sodium sulfide and nickel (II) nitrate react to produce nickel (II) sulfide and sodium nitrate.
Asked by Mandy F - Tue Jun 10 20:19:40 2008 - - 1 Answers - 0 Comments

A. H3PO4 + Ca(OH)2 --> CaPO4 + H2O Phosphoric acid reacts with calcium hydroxide to produce calcium phosphate and water. That's basically how you do it. Take the chemical formula for the words and put it in the problem. Just remember, reacts with= add (and is also included in this) to produce= ---> (an arrow), yields also means an arrow, too.
Answered by Angela - Tue Jun 10 20:28:49 2008

Chemistry questions, please please help me!!?
Q. How many outermost d electrons are there in an ion that has achieved a pseudo noble gas configuration? a.) none b.) 5 c.) 8 d.) 10 Where does a subscript that indicates the number of atoms appear, relative to a chemical symbol in a formula? a.) to the upper left b.) to the lower left c.) to the upper right d.) to the lower right What is the formula of calcium phosphate, which is made up of the ions Ca 2+ and PO 3- 4 4 is the bottom number, it goes in between O and 3-. And 2+ is the exponent and so is 3- a exponent thanks
Asked by unknown - Wed Apr 1 20:52:16 2009 - - 1 Answers - 0 Comments

A. Anything with a d^10 configuration at the end will indicate a noble gas because all 5 orbitals have been filled with electrons (2 per orbital). Examples for #2... O2(g), H2(g), H2O(s/l/g) (numbers indicate subscripts) Lower right. Ca3(PO4)2 (numbers indicate subscripts) All of these problems should be easily done without much hassle. If you're having problems, seek help from your instructor or get help from a tutor or friend.
Answered by /\/ ? - Wed Apr 1 21:55:02 2009

Another chemistry question, help from a genius and ten points?
Q. I need these chemical formulas: ammonium hydrogen phosphate mercury (I) sulfide silicon dioxide sodium sulfite aluminum hydrogen sulfate nitrogen trichloride hydrobromic acid bromous acid perbromic acid potassum hydrogen sulfide calcium iodide cesium perchlorate
Asked by aaadaj - Thu Aug 16 08:31:39 2007 - - 2 Answers - 0 Comments

A. (NH4)2HPO4 Hg2S SiO2 Na2SO3 Al(HSO4)3 NCl3 HBr HBrO2 HBrO4 KHS CaI2 CsClO4
Answered by Dr.A - Thu Aug 16 08:38:00 2007

writing chemical formulas...HELP!!?
Q. Im really having trouble with these, I dont get the it?? Can anyone help me? 1) potassium nitride, K is a +1 and N is -3 Dont i need a positive 3 charge in K to balance the -3? If so will my answer be: K3N or is it K2N cause I already have a +1 charge on K and i need 2 more to balance with the N? 2) Calcium phosphide, C +2charge, P -3charge How would i balance this and write the formula? 3) Iron (II) Phosphate, Phosphate -3 charge? How would i write this formula? 4) Magnesium Nitride, Mg +2 , N -3 ?
Asked by Lost24/7 - Fri Dec 7 05:46:46 2007 - - 3 Answers - 0 Comments

A. 1. Potassium nitride The cation is Potassium, symbol K , Atomic number 19 It is a Gr-1 metal, that means it can loose 1electron to form the corresponding Potassium ion with 1positive charge K(+1), That means Potassium has now 11protons and 10 electrons. On the other hand Nitrogen, Symbol N, Atomic number 7 It requires 3 electrons to fill in the outermost shell to acquire nearest inert gas configuration of Neon (At. no. 10) So it needs three electrons to fill it, which can be supplied by 3 potassium atoms (one each), i.e. 3K ---> 3K (+1) + 3e (-) And N + 3e (-) ---> N (-3) Finally, 3K (+1) + N (-3) ---> K3N1 or K3N Now three potassium atoms have got 3x(+1) = 3(+) charge and One nitrogen has 1x (-3) = 3 (-) charge, So total… [cont.]
Answered by dinu - Fri Dec 7 06:05:55 2007

what are the chemical formulas for these?
Q. Calcium disodium potassium citrate disodium phosphate magnesium chloride Thanks so much
Asked by bigbriana13 - Mon Nov 3 21:32:53 2008 - - 1 Answers - 0 Comments

A. CaNa2 KC6H5O7^-2 Na2PO4^- MgCl^+2
Answered by midnightjoker - Mon Nov 3 21:39:02 2008

I need some help with some chem problems?
Q. i need the chemical formulas for ferrous carbonate, lead(II) phosphate, and calcium sulfate dihydrate and i need the chemical name for CO2(SO3)3
Asked by Scotty W - Thu Jul 20 11:31:45 2006 - - 3 Answers - 0 Comments

A. FeCO3, Pb3(PO4)2, CaS ferrous = +2 ferric = +3 it's the old way of naming i'd check the structure of the chemical because it doesn't look right either you have 5 bonds to carbon which only happens in a super acid or you have a typo. i'm guessing you have a typo
Answered by shiara_blade - Thu Jul 20 13:40:12 2006

Can someone help me with chemistry please??
Q. 1) name some simple rules for naming an ionic compound 2) when is it appropriate to use roman numerals in naming compounds? 3)What does a numerical subscript following an element in a chemical formula mean? 4) what does a numerical subscript following a set of parentheses in a chemical formula mean? 5) write some simple rules for writing the formula for an ionic compound -I need to know the chemical formulas for: lead (II) nitrate sodium acetate ammonium chloride sodium phosphate calcium hydroxide tin (IV) chloride potassium bromide and then the name of: CaCl2 FeCl2 Na2HPO4 NaH2PO4 Thank you sooo much!!!
Asked by Hannah - Tue Dec 5 22:34:03 2006 - - 2 Answers - 0 Comments

A. 1) the cation is named first, followed by the anion. When naming ionic compounds, change the ending of the anions to -ide instead of -ine. 2) Roman numerals are appropriate when naming compounds that contain transition metals to indicate their charge. 3)The numerical subscript refers to the number of atoms in that compound. 4)the subscript following parentheses refers to the number of polyatomic ions the compound contains. 5) when writing the formula for an ionic compound, multiply each charge by the number of atoms that will balance the charge of both ions. Normally just reversing them and using them as subscripts work fine. chemical formulas: Pb(No3) NaCH3COO NH4Cl Na3PO4 Ca(OH)2 SnCl4 KBr Calcium chloride Iron (II) chloride Sodium… [cont.]
Answered by Victoria - Tue Dec 5 22:57:13 2006

Chemistry simple questions urgent!?
Q. 1. When they say that a compound is copper (II) oxide, then what does the (II) stand for? 2. When you are asked to construct your own chemical equation for certain substances they give you in words (e.g. copper sulphate reacts with calcium phosphate to produce water and ...), is is it easier to just memorize the chemical formula of the substances or refer to the periodic table and find out how many valence electrons each element has and find out how many of each are needed to make the compound neutral? (e.g Ca3P2)?? I'm really so confused and my exam's tomorrow.
Asked by sandra - Sat May 2 23:48:00 2009 - - 2 Answers - 0 Comments

A. 1. The amount of valence electrons. ie. 2 valence electrons in this case. Thus, copper (II) oxide will be CuO. 2. What I do is memorise all the +1, -1, +3 and -3 substances, and those that don't fit in those categories must therefore be either +2 or -2 (which you can work out using your periodic table).
Answered by AFL Fanatic - Sun May 3 00:00:43 2009

Science: chemical formulas help. Please and Thank-you!!!?
Q. My teacher gave me a list of 100 to do. And I cannot figure these 16 out! Magnesium Oxide___ Calcium Nitride___ Copper I bromide ___ Potssium Chlorate___ Phosphoric Acid___ Carbon Monoxide___ Carbon Tetrachloride___ Methane___ Aluminum sulfide___ Iron II sulfide___ Beryllium nitrate___ Aluminum hydroxide___ Sodium Phosphate___ Sulfur Trioxide___ Diphosphorus Pentabromide___ Hydrogen Peroxide___
Asked by Rachel A - Sun Mar 29 15:13:48 2009 - - 1 Answers - 0 Comments

A. I'll list them in the order you gave (Numbers should be in subscripts): MgO Ca3N2 CuBr KClO3 H3PO4 CO CCl4 CH4 Al2S3 FeS Be3N2 Al(OH)3 Na3PO4 SO3 P2Br5 H2O2
Answered by Ariel Kenneth - Sun Mar 29 15:28:12 2009