In the formula for copper(II) phosphate, how many phosphorus atoms are there?
Q. 1. four 2. one 3. three 4. two
Asked by V - Tue Nov 11 21:11:33 2008 - - 6 Answers - 0 Comments
A. The Roman numerals (II) imply that the copper is in a +2 state. Since phosphate ion has a charge of -3 (this is something you have to memorize for general chemistry) you have to have three coppers and two phosphates to balance the charge within the compound. There is one phosphorus atom for every phosphate ion (PO4(3-)), so there are two phosphorus atoms total in the formula. EDIT: Good job, Grace! :)
Answered by derrp - Tue Nov 11 21:14:58 2008
Q. 1. four 2. one 3. three 4. two
Asked by V - Tue Nov 11 21:11:33 2008 - - 6 Answers - 0 Comments
A. The Roman numerals (II) imply that the copper is in a +2 state. Since phosphate ion has a charge of -3 (this is something you have to memorize for general chemistry) you have to have three coppers and two phosphates to balance the charge within the compound. There is one phosphorus atom for every phosphate ion (PO4(3-)), so there are two phosphorus atoms total in the formula. EDIT: Good job, Grace! :)
Answered by derrp - Tue Nov 11 21:14:58 2008
What is a balanced chemical equation for copper(II) chloride and sodium phosphate?
Q. Please add the abbreviations for the physical state of each reactant and product also. (aq) for aqueous solution. (s) for solid. (l) for liquid. (g) for gas. Thanks.
Asked by FatPastey - Sat Nov 22 13:24:21 2008 - - 1 Answers - 0 Comments
A. 3CuCl2(aq) + 2Na3PO4(aq) ---> Cu3(PO4)2(s) + 6NaCl(aq)
Answered by Lexi R - Sat Nov 22 18:05:14 2008
Q. Please add the abbreviations for the physical state of each reactant and product also. (aq) for aqueous solution. (s) for solid. (l) for liquid. (g) for gas. Thanks.
Asked by FatPastey - Sat Nov 22 13:24:21 2008 - - 1 Answers - 0 Comments
A. 3CuCl2(aq) + 2Na3PO4(aq) ---> Cu3(PO4)2(s) + 6NaCl(aq)
Answered by Lexi R - Sat Nov 22 18:05:14 2008
What happens when Copper (II) Chloride reacts with Sodium Phosphate?
Q. What observations are noticeable? Thank You! What would been seen if preforming this reaction?
Asked by x8fishy8x - Tue Jan 1 12:50:42 2008 - - 1 Answers - 0 Comments
A. You will form Copper (II) phosphate precipitate. The sodium and chloride ions remain soluble in solution. Copper phosphate is insoluble.
Answered by Brian H - Tue Jan 1 12:56:50 2008
Q. What observations are noticeable? Thank You! What would been seen if preforming this reaction?
Asked by x8fishy8x - Tue Jan 1 12:50:42 2008 - - 1 Answers - 0 Comments
A. You will form Copper (II) phosphate precipitate. The sodium and chloride ions remain soluble in solution. Copper phosphate is insoluble.
Answered by Brian H - Tue Jan 1 12:56:50 2008
write reaction formula for copper II chloride and sodium phosphate?
Q. please include abbreviations for the physical state of each reactant and product like aq, s, l, g thank you
Asked by soconfuse - Tue Nov 6 20:27:52 2007 - - 1 Answers - 0 Comments
A. 3CuCl2 (aq) + 2Na3PO4 (aq) ---> Cu3(PO4)2 (s) + 6NaCl (aq)
Answered by Tigereye - Tue Nov 6 20:41:12 2007
Q. please include abbreviations for the physical state of each reactant and product like aq, s, l, g thank you
Asked by soconfuse - Tue Nov 6 20:27:52 2007 - - 1 Answers - 0 Comments
A. 3CuCl2 (aq) + 2Na3PO4 (aq) ---> Cu3(PO4)2 (s) + 6NaCl (aq)
Answered by Tigereye - Tue Nov 6 20:41:12 2007
What is the balanced chemical equation for copper (II) nitrate plus sodium phosphate?
Q. What is the balanced chemical equation for copper (II) nitrate plus sodium phosphate?
Asked by pinkmoose3252 - Wed May 9 16:05:07 2007 - - 3 Answers - 0 Comments
A. 3Cu(NO3)2 + 2Na3PO4 ---> Cu3(PO4)2 + 6NaNO3 That's it! Hope it helps!
Answered by CHESSLARUS - Wed May 9 16:11:33 2007
Q. What is the balanced chemical equation for copper (II) nitrate plus sodium phosphate?
Asked by pinkmoose3252 - Wed May 9 16:05:07 2007 - - 3 Answers - 0 Comments
A. 3Cu(NO3)2 + 2Na3PO4 ---> Cu3(PO4)2 + 6NaNO3 That's it! Hope it helps!
Answered by CHESSLARUS - Wed May 9 16:11:33 2007
what happens if you combine copper(II) chloride with sodium phosphate?
Q. temperature change? color change? precipitate? gas formation?
Asked by Juan C - Thu Nov 15 18:00:28 2007 - - 1 Answers - 0 Comments
A. 3CuCl2(aq) + 2Na3PO4(aq) ---> Cu3(PO4)2(s) + 6 NaC(aq) You get a precipitate of cupric phosphate.
Answered by Dennis M - Thu Nov 15 18:08:45 2007
Q. temperature change? color change? precipitate? gas formation?
Asked by Juan C - Thu Nov 15 18:00:28 2007 - - 1 Answers - 0 Comments
A. 3CuCl2(aq) + 2Na3PO4(aq) ---> Cu3(PO4)2(s) + 6 NaC(aq) You get a precipitate of cupric phosphate.
Answered by Dennis M - Thu Nov 15 18:08:45 2007
write a balanced chemical equation for copper(ii)chloride+ammoni um phosphate=?
Q. write a balanced chemical equation for copper(ii)chloride+ammoni um phosphate=?
Asked by navya - Mon May 21 10:08:14 2007 - - 1 Answers - 0 Comments
A. 3CuCl2 + 2 (NH4)3PO4 ---> Cu3(PO4)2 + 6NH4Cl
Answered by 1-man-show - Mon May 21 10:11:07 2007
Q. write a balanced chemical equation for copper(ii)chloride+ammoni um phosphate=?
Asked by navya - Mon May 21 10:08:14 2007 - - 1 Answers - 0 Comments
A. 3CuCl2 + 2 (NH4)3PO4 ---> Cu3(PO4)2 + 6NH4Cl
Answered by 1-man-show - Mon May 21 10:11:07 2007
A solution of copper (II) nitrate (187.57 g/mol) is prepared by dissolving 46.89 grams of copper (II) nitrate?
Q. A solution of copper (II) nitrate (187.57 g/mol) is prepared by dissolving 46.89 grams of copper (II) nitrate in a total volume of 0.500 L of water. A 12.5 mL sample of this solution is reacted with sodium hydroxide to give a precipitate of copper (II) hydroxide, which is converted to copper (II) sulfate, precipated again as copper (II) phosphate, solubized as copper (II) chloride and finally converted to elemental copper. What is the theoretical yield of elemental copper in this sequence of reactions? Express your answer in terms of moles
Asked by drifit213 - Mon Feb 23 15:48:13 2009 - - 1 Answers - 0 Comments
A. [(12.5 ml)/(500 ml)][(46.89 g)/(187.57 g/mol)] 0.0062497 mole 0.00625 mole
Answered by Helmut - Fri Feb 27 03:06:49 2009
Q. A solution of copper (II) nitrate (187.57 g/mol) is prepared by dissolving 46.89 grams of copper (II) nitrate in a total volume of 0.500 L of water. A 12.5 mL sample of this solution is reacted with sodium hydroxide to give a precipitate of copper (II) hydroxide, which is converted to copper (II) sulfate, precipated again as copper (II) phosphate, solubized as copper (II) chloride and finally converted to elemental copper. What is the theoretical yield of elemental copper in this sequence of reactions? Express your answer in terms of moles
Asked by drifit213 - Mon Feb 23 15:48:13 2009 - - 1 Answers - 0 Comments
A. [(12.5 ml)/(500 ml)][(46.89 g)/(187.57 g/mol)] 0.0062497 mole 0.00625 mole
Answered by Helmut - Fri Feb 27 03:06:49 2009
What happens when Copper (II) chloride solution and sodium phosphate solution are combined together?
Q. CuCl2 + Na3PO4 = ?
Asked by Hiawatha - Thu Dec 7 20:19:01 2006 - - 1 Answers - 0 Comments
A. you get a double replacement reaction. CuCl2 + Na3PO4 = Cu3(PO4)2 + NaCl
Answered by Victoria - Thu Dec 7 23:31:57 2006
Q. CuCl2 + Na3PO4 = ?
Asked by Hiawatha - Thu Dec 7 20:19:01 2006 - - 1 Answers - 0 Comments
A. you get a double replacement reaction. CuCl2 + Na3PO4 = Cu3(PO4)2 + NaCl
Answered by Victoria - Thu Dec 7 23:31:57 2006
Copper Sulfate and Sodium Phosphate?
Q. If you have Copper(II) Sulfate + Sodium Phosphate what is the molecular, complete net ionic, and net ionic equations?
Asked by shane200388 - Thu Mar 1 02:11:26 2007 - - 1 Answers - 0 Comments
A. Lancenigo di Villorba (TV), Italy Starting from complex-actions played by anions of phosphoric acid, I remember that hydrogeno-phosphate ion (e.g. HPO4--) may interact with copper ions CuSO4(aq) + Na3PO4(aq) + H2O(aq) <---> <---> CuHPO4(aq) + Na2SO4(aq) + NaOH(aq) Cu++(aq) + PO4---(aq) + H2O(aq) <---> <---> CuHPO4(aq) + OH-(aq) Meanwhile CuHPO4 cannot precipitate, I thought it may form since copper and hydrogeno-phosphate ions carry out a significative value, as follows : Kps = |Cu++| * |HPO4--| remembering the Acid-Base Equilibrium forming the hydrogeno-phosphate ion Ka3 = |PO4---| * |OH-| / |HPO4--| so I rearrange the terms Kps * Ka3 = |Cu++| * |PO4---| * |OH-| The low value of the overwritten relationship confirm the medium… [cont.]
Answered by Zor Prime - Thu Mar 1 04:25:09 2007
Q. If you have Copper(II) Sulfate + Sodium Phosphate what is the molecular, complete net ionic, and net ionic equations?
Asked by shane200388 - Thu Mar 1 02:11:26 2007 - - 1 Answers - 0 Comments
A. Lancenigo di Villorba (TV), Italy Starting from complex-actions played by anions of phosphoric acid, I remember that hydrogeno-phosphate ion (e.g. HPO4--) may interact with copper ions CuSO4(aq) + Na3PO4(aq) + H2O(aq) <---> <---> CuHPO4(aq) + Na2SO4(aq) + NaOH(aq) Cu++(aq) + PO4---(aq) + H2O(aq) <---> <---> CuHPO4(aq) + OH-(aq) Meanwhile CuHPO4 cannot precipitate, I thought it may form since copper and hydrogeno-phosphate ions carry out a significative value, as follows : Kps = |Cu++| * |HPO4--| remembering the Acid-Base Equilibrium forming the hydrogeno-phosphate ion Ka3 = |PO4---| * |OH-| / |HPO4--| so I rearrange the terms Kps * Ka3 = |Cu++| * |PO4---| * |OH-| The low value of the overwritten relationship confirm the medium… [cont.]
Answered by Zor Prime - Thu Mar 1 04:25:09 2007
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
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
How do you balance the following equations and find the Net Ionic equation?
Q. Please balance the following and tell the net ionic equation-- Cobalt II nitract & Sodium Phosphate Barium nitrate & sodium phosphate Copper II nitrate & sodium iodide Iron III nitrate and Sodium iodide Copper II Nitrate & Sodium bicarbonate Iron III nitrate & sodium bicarbonate Barium nitrate & sodium carbonate Thanks!
Asked by Nate T - Tue Mar 24 15:07:53 2009 - - 1 Answers - 0 Comments
A. That is too much to do; learn how to balance and write equations from your teacher. t
Answered by Dhan Noon - Sat Mar 28 13:53:51 2009
Q. Please balance the following and tell the net ionic equation-- Cobalt II nitract & Sodium Phosphate Barium nitrate & sodium phosphate Copper II nitrate & sodium iodide Iron III nitrate and Sodium iodide Copper II Nitrate & Sodium bicarbonate Iron III nitrate & sodium bicarbonate Barium nitrate & sodium carbonate Thanks!
Asked by Nate T - Tue Mar 24 15:07:53 2009 - - 1 Answers - 0 Comments
A. That is too much to do; learn how to balance and write equations from your teacher. t
Answered by Dhan Noon - Sat Mar 28 13:53:51 2009
What is the concentration of a solution that has a volume of 2.5L and contains 660 grams of calcium phosphate?
Q. Also, How many grams of copper (II) fluoride are needed to make 6.7 liters of a 1.2M solution
Asked by Trikstaa - Tue Jul 14 22:12:18 2009 - - 1 Answers - 0 Comments
Q. Also, How many grams of copper (II) fluoride are needed to make 6.7 liters of a 1.2M solution
Asked by Trikstaa - Tue Jul 14 22:12:18 2009 - - 1 Answers - 0 Comments
charges for compounds?
Q. I know how to do some simple charges like NH4+ & NO3- = NH4 NO3 (charges cancel because you have on positive and one negative) Would copper phosphate be Cu3(PO4)2? i'm not even sure if i wrote the name for that write..is it supposed to be copper(II)phosphate?
Asked by Mr. Dan - Mon Oct 23 10:07:29 2006 - - 4 Answers - 0 Comments
A. Yes you are right. Combining ions with their respective charges have to make an electrically neutral compound. In the case of your last example (Copper Phosphate) it is better to write the number of oxidation that metal is working moreover when it works with different valences [Copper (I) and Copper (II)] That s it ! Good luck!
Answered by CHESSLARUS - Mon Oct 23 10:14:45 2006
Q. I know how to do some simple charges like NH4+ & NO3- = NH4 NO3 (charges cancel because you have on positive and one negative) Would copper phosphate be Cu3(PO4)2? i'm not even sure if i wrote the name for that write..is it supposed to be copper(II)phosphate?
Asked by Mr. Dan - Mon Oct 23 10:07:29 2006 - - 4 Answers - 0 Comments
A. Yes you are right. Combining ions with their respective charges have to make an electrically neutral compound. In the case of your last example (Copper Phosphate) it is better to write the number of oxidation that metal is working moreover when it works with different valences [Copper (I) and Copper (II)] That s it ! Good luck!
Answered by CHESSLARUS - Mon Oct 23 10:14:45 2006
Does anyone know how to tell if an element is ionic or molecular and what the cation(+) charge is....?
Q. along with the anion(-) charge...It's hard to exsplain. This is what it looks like... ...ionic or...Cation... Anion...Fomula ...molecular ...Charge...Charge Barium Oxide--- Copper(II) Phosphate Boron Trichloride Lithium Chloride
Asked by Ashley A - Tue Jan 13 20:24:14 2009 - - 4 Answers - 1 Comments
A. If I understand your question correctly (which I'm not sure I do), you want to know whether the compounds (not elements) you listed are ionic or molecular; what their formulas are; and if they're ionic, which is the cation and which is the anion. Does that sound right? ionic compounds: An ionic compound is formed between a metal (or a positive polyatomic ion) and a non-metal (or a negative polyatomic ion). This happens because metals "want" to drop a certain number of electrons to become more stable, and most non-metals "want" to pick up extra electrons. The metal "gives" its extra electrons to the non-metal, creating an ionic bond between them. In the case of polyatomic ions (such as phosphate from your question), a number of non-metals [cont.]
Answered by elisebanana - Tue Jan 13 21:08:57 2009
Q. along with the anion(-) charge...It's hard to exsplain. This is what it looks like... ...ionic or...Cation... Anion...Fomula ...molecular ...Charge...Charge Barium Oxide--- Copper(II) Phosphate Boron Trichloride Lithium Chloride
Asked by Ashley A - Tue Jan 13 20:24:14 2009 - - 4 Answers - 1 Comments
A. If I understand your question correctly (which I'm not sure I do), you want to know whether the compounds (not elements) you listed are ionic or molecular; what their formulas are; and if they're ionic, which is the cation and which is the anion. Does that sound right? ionic compounds: An ionic compound is formed between a metal (or a positive polyatomic ion) and a non-metal (or a negative polyatomic ion). This happens because metals "want" to drop a certain number of electrons to become more stable, and most non-metals "want" to pick up extra electrons. The metal "gives" its extra electrons to the non-metal, creating an ionic bond between them. In the case of polyatomic ions (such as phosphate from your question), a number of non-metals [cont.]
Answered by elisebanana - Tue Jan 13 21:08:57 2009
Give the formulas of the following componds checking my work...?
Q. Number 15 especially. Also, does anyone know how to right the little numbers next to the bottom right of the formulas? 1) Barium chloride: BaCl2 2) Zinc Fluoride: ZnF2 3)Lead(II) iodide: PbI2 4)Ammonium hydroxide: NH4OH 5)Potassium Chromate: K2CrO4 6)Bismuth(III) Chloride: BiCl3 7)Magnesium Perchlorate: Mg(ClO4)2 8)Copper(II) sulfate: Cu2(SO4)2 9) Iron (III) chloride: FeCl3 10) Calcium cyanide: CaCn2 11) Copper(I) Sulfide: Cu2S 12) Silver Carbonate: Ag2CO3 13)Cadmium hypochlorite: CdClO2 14) Sodium bicarbonate: NaHCO3 15) Aluminum acetate: Al(Ca2H3O2)3 16)Nickle(II) Phosphate: Ni3(PO4)2 17)Sodium Sulfite: Na2SO3 18)Tin(IV) oxide: Sn2O4 Thanks
Asked by evilshenanegans - Thu Sep 20 16:18:35 2007 - - 2 Answers - 0 Comments
A. 8 - CuSO4 10 - Ca(CN)2 13 - Cd(OCl)2 15 - Al(CH3COO)3 18 - SnO2 All the others are correct. Good to see someone on this site making an effort!
Answered by Gervald F - Thu Sep 20 16:32:06 2007
Q. Number 15 especially. Also, does anyone know how to right the little numbers next to the bottom right of the formulas? 1) Barium chloride: BaCl2 2) Zinc Fluoride: ZnF2 3)Lead(II) iodide: PbI2 4)Ammonium hydroxide: NH4OH 5)Potassium Chromate: K2CrO4 6)Bismuth(III) Chloride: BiCl3 7)Magnesium Perchlorate: Mg(ClO4)2 8)Copper(II) sulfate: Cu2(SO4)2 9) Iron (III) chloride: FeCl3 10) Calcium cyanide: CaCn2 11) Copper(I) Sulfide: Cu2S 12) Silver Carbonate: Ag2CO3 13)Cadmium hypochlorite: CdClO2 14) Sodium bicarbonate: NaHCO3 15) Aluminum acetate: Al(Ca2H3O2)3 16)Nickle(II) Phosphate: Ni3(PO4)2 17)Sodium Sulfite: Na2SO3 18)Tin(IV) oxide: Sn2O4 Thanks
Asked by evilshenanegans - Thu Sep 20 16:18:35 2007 - - 2 Answers - 0 Comments
A. 8 - CuSO4 10 - Ca(CN)2 13 - Cd(OCl)2 15 - Al(CH3COO)3 18 - SnO2 All the others are correct. Good to see someone on this site making an effort!
Answered by Gervald F - Thu Sep 20 16:32:06 2007
Choose the incorrect name formula combination?
Q. a) CaH2 - calcium hydroxide b) SiO2 Silicon dioxide c) HClO Hypochlorous acid d) Cu3 (PO4)2 Copper (II) phosphate e) AlCl3 aluminum chloride
Asked by Song P - Thu May 1 15:22:46 2008 - - 4 Answers - 0 Comments
A. The incorrect one? That's easy. a) CaH2 is calcium hydride. Calcium hydroxide would be Ca(OH)2.
Answered by kumorifox - Thu May 1 15:26:00 2008
Q. a) CaH2 - calcium hydroxide b) SiO2 Silicon dioxide c) HClO Hypochlorous acid d) Cu3 (PO4)2 Copper (II) phosphate e) AlCl3 aluminum chloride
Asked by Song P - Thu May 1 15:22:46 2008 - - 4 Answers - 0 Comments
A. The incorrect one? That's easy. a) CaH2 is calcium hydride. Calcium hydroxide would be Ca(OH)2.
Answered by kumorifox - Thu May 1 15:26:00 2008
Write formulas for the following compounds containing polyatomic ions?
Q. a) calcium acetate b) sodium phosphate c) copper (II) sulfate d) iron (II) phosphate e) aluminum hydroxide f) calcium hydrogen carbonate g) ammonium phosphate h) lithium dichromate
Asked by # 54 - Wed Apr 2 20:59:47 2008 - - 1 Answers - 0 Comments
A. a) Ca(C2H3O2)2 b) NaH2PO4 c) CuSO4 d) Fe3(PO4)2 e) Al(OH)3 f) Ca(HCO3)2 g) (NH4)3PO4 h) Li2CrO4
Answered by Isabel D - Wed Apr 2 21:07:32 2008
Q. a) calcium acetate b) sodium phosphate c) copper (II) sulfate d) iron (II) phosphate e) aluminum hydroxide f) calcium hydrogen carbonate g) ammonium phosphate h) lithium dichromate
Asked by # 54 - Wed Apr 2 20:59:47 2008 - - 1 Answers - 0 Comments
A. a) Ca(C2H3O2)2 b) NaH2PO4 c) CuSO4 d) Fe3(PO4)2 e) Al(OH)3 f) Ca(HCO3)2 g) (NH4)3PO4 h) Li2CrO4
Answered by Isabel D - Wed Apr 2 21:07:32 2008
What are the formulas of these compounds?
Q. Compounds: Potassium Fluoride, Iron (III) chloride, Copper (II) Sulfate, Ammonium Chloride, Copper (II) Chloride, Lead (II) Carbonate, Sodium Phosphate.
Asked by hina.mori - Sat Sep 29 17:46:23 2007 - - 2 Answers - 0 Comments
A. KF, FeCl3, CuSO4, NH4Cl, CuCl2, PbCO3, Na3PO4
Answered by KarenaT - Sat Sep 29 17:53:03 2007
Q. Compounds: Potassium Fluoride, Iron (III) chloride, Copper (II) Sulfate, Ammonium Chloride, Copper (II) Chloride, Lead (II) Carbonate, Sodium Phosphate.
Asked by hina.mori - Sat Sep 29 17:46:23 2007 - - 2 Answers - 0 Comments
A. KF, FeCl3, CuSO4, NH4Cl, CuCl2, PbCO3, Na3PO4
Answered by KarenaT - Sat Sep 29 17:53:03 2007
Chemilcal formulas please?
Q. the chemical formula for aqueos sodium phosphate + copper(II) sulfate ---> aqueos sodium sulfaet and solid copper(II) Phosphate?
Asked by Live, Laugh, Love - Sun Jan 25 23:07:25 2009 - - 2 Answers - 0 Comments
A. 2(Na3)(PO4) [aq] + 3Cu(SO4) [s] ---> 3(Na2)(SO4) [aq] + (Cu3)(PO4*2) 2 molecules of Sodium Phosphate + 3 molecules of Copper (II) Sulfate react to form 3 molecules of Sodium Sulfate and 2 molecules of Copper (II) Phosphate.
Answered by WarburgEffect - Sun Jan 25 23:13:22 2009
Q. the chemical formula for aqueos sodium phosphate + copper(II) sulfate ---> aqueos sodium sulfaet and solid copper(II) Phosphate?
Asked by Live, Laugh, Love - Sun Jan 25 23:07:25 2009 - - 2 Answers - 0 Comments
A. 2(Na3)(PO4) [aq] + 3Cu(SO4) [s] ---> 3(Na2)(SO4) [aq] + (Cu3)(PO4*2) 2 molecules of Sodium Phosphate + 3 molecules of Copper (II) Sulfate react to form 3 molecules of Sodium Sulfate and 2 molecules of Copper (II) Phosphate.
Answered by WarburgEffect - Sun Jan 25 23:13:22 2009
From Yahoo Answer Search: 'copper II phosphate'
Sat Nov 14 06:46:11 2009 [ refresh local cache ]
[Hide]▼
previouspapers.blogspot.com
mani
Mon, 31 Mar 2008 19:27:01 GM
(iv) Compounds such as ammonium nitrate. urea and super - . phosphate. are used to replace nitrogen and other elements loss from the soil as a result of cultivation. What is the common name given to these compounds ? ... Q . 2. (c) Write correctly balanced equations for the reaction in dilute sulphuric acid with each of the following : (i) . Copper. carbonate (. ii. ) Lead nitrate solution (iii) Zinc hydroxide. Q 3 (a) The following reaction are carrid out :L ...
[Hide]▲
