Identify and correct each error, and then balance each equation.?
Q. AgNO3 + CaCl2 AgCl2 + Ca(NO3) corrected formula 1 corrected formula 2 coefficients for the balanced equation Mg + HCl H2 + MgCl corrected formula 1 corrected formula 2 coefficients for the balanced equation MgCO3 Mg + C + O2 corrected formula 1 corrected formula 2 coefficients for the balanced equation NaI + Cl2 NaCl + I corrected formula 1 corrected formula 2 coefficients for the balanced equation Li + O2 LiO2 corrected formula 1 corrected formula 2 coefficients for the balanced equation
Asked by Ask&learn - Fri Jan 25 21:28:46 2008 - - 1 Answers - 0 Comments
A. 1. AgNO3 + CaCl2 AgCl2 + Ca(NO3) should be 2AgNO3 + CaCl2 --> 2AgCl + Ca(NO3)2 (Ag^+ = silver ion ; Cl^-1 = chloride ion ; calcium ion = Ca^2+; nitrate ion = NO3^-1) 2. Mg + HCl H2 + MgCl should be Mg + 2HCl --> H2 + MgCl2 (magnesium ion =Mg^2+; chloride ion = Cl^-1 thus there should be 2 chloride ions for every magnesium ion) 3. MgCO3 Mg + C + O2 should be MgCO3 --> MgO+ CO2 (decomposition reaction of carbonates produce CO2 and metallic oxide) 4. NaI + Cl2 NaCl + I Should be 2NaI + Cl2--> 2NaCl + I2 (iodine exists as a molecule) 5.Li + O2 LiO2 should be 4Li + O2 --> 2Li2O (oxide ion = O^2- ; lithium ion = Li^+ thus there should be 2 lithium ions for every oxide ion) hope this helps;-)
Answered by kodie - Fri Jan 25 22:19:44 2008
Q. AgNO3 + CaCl2 AgCl2 + Ca(NO3) corrected formula 1 corrected formula 2 coefficients for the balanced equation Mg + HCl H2 + MgCl corrected formula 1 corrected formula 2 coefficients for the balanced equation MgCO3 Mg + C + O2 corrected formula 1 corrected formula 2 coefficients for the balanced equation NaI + Cl2 NaCl + I corrected formula 1 corrected formula 2 coefficients for the balanced equation Li + O2 LiO2 corrected formula 1 corrected formula 2 coefficients for the balanced equation
Asked by Ask&learn - Fri Jan 25 21:28:46 2008 - - 1 Answers - 0 Comments
A. 1. AgNO3 + CaCl2 AgCl2 + Ca(NO3) should be 2AgNO3 + CaCl2 --> 2AgCl + Ca(NO3)2 (Ag^+ = silver ion ; Cl^-1 = chloride ion ; calcium ion = Ca^2+; nitrate ion = NO3^-1) 2. Mg + HCl H2 + MgCl should be Mg + 2HCl --> H2 + MgCl2 (magnesium ion =Mg^2+; chloride ion = Cl^-1 thus there should be 2 chloride ions for every magnesium ion) 3. MgCO3 Mg + C + O2 should be MgCO3 --> MgO+ CO2 (decomposition reaction of carbonates produce CO2 and metallic oxide) 4. NaI + Cl2 NaCl + I Should be 2NaI + Cl2--> 2NaCl + I2 (iodine exists as a molecule) 5.Li + O2 LiO2 should be 4Li + O2 --> 2Li2O (oxide ion = O^2- ; lithium ion = Li^+ thus there should be 2 lithium ions for every oxide ion) hope this helps;-)
Answered by kodie - Fri Jan 25 22:19:44 2008
5 more equations to balance please help me??
Q. Choose the answer that shows a correctly balanced equation. 3 Cu(NO3) 2 + 2 2Na3 PO4 -> Cu3 (PO4) 2 + 6 NaNO3 3 Cu(NO3) 2 + 2 Na3 PO4 -> Cu3 (PO4) 2 + 6 NaNO3 3 Cu(NO3) 2 + 2 Na3 2PO4 -> Cu3 (PO4) 2 + 6 NaNO3 Choose the answer that shows a correctly balanced equation. 2 Mg + O2 -> 2 MgO 2 Mg + 2O2 -> 2 MgO 3 Mg + O2 ->3 MgO Choose the answer that shows a correctly balanced equation. 2 C6 H14 + 21 O2 -> 12 CO2 + 14 H2 O 2 C6 H14 + 19 O2 -> 12 CO2 + 14 H2 O C6 H14 + 19 O2 -> 12 CO2 + 14 H2 O Choose the answer that shows a correctly balanced equation. 2Zn + H2 SO4 -> H2 + 2ZnSO4 Zn + 2H2 SO4 -> H2 + ZnSO4 Zn + H2 SO4 -> H2 + ZnSO4 Choose the answer that shows a correctly balanced equation. 4 Al + 3 O2 -> 2 Al2… [cont.]
Asked by ABC - Wed Jan 3 15:25:03 2007 - - 3 Answers - 0 Comments
A. question 1-5 answers abc 1b 2a 3b 4c 5a
Answered by m w - Wed Jan 3 15:34:02 2007
Q. Choose the answer that shows a correctly balanced equation. 3 Cu(NO3) 2 + 2 2Na3 PO4 -> Cu3 (PO4) 2 + 6 NaNO3 3 Cu(NO3) 2 + 2 Na3 PO4 -> Cu3 (PO4) 2 + 6 NaNO3 3 Cu(NO3) 2 + 2 Na3 2PO4 -> Cu3 (PO4) 2 + 6 NaNO3 Choose the answer that shows a correctly balanced equation. 2 Mg + O2 -> 2 MgO 2 Mg + 2O2 -> 2 MgO 3 Mg + O2 ->3 MgO Choose the answer that shows a correctly balanced equation. 2 C6 H14 + 21 O2 -> 12 CO2 + 14 H2 O 2 C6 H14 + 19 O2 -> 12 CO2 + 14 H2 O C6 H14 + 19 O2 -> 12 CO2 + 14 H2 O Choose the answer that shows a correctly balanced equation. 2Zn + H2 SO4 -> H2 + 2ZnSO4 Zn + 2H2 SO4 -> H2 + ZnSO4 Zn + H2 SO4 -> H2 + ZnSO4 Choose the answer that shows a correctly balanced equation. 4 Al + 3 O2 -> 2 Al2… [cont.]
Asked by ABC - Wed Jan 3 15:25:03 2007 - - 3 Answers - 0 Comments
A. question 1-5 answers abc 1b 2a 3b 4c 5a
Answered by m w - Wed Jan 3 15:34:02 2007
Writing a balanced equation?
Q. Write the balanced equation for the reaction of magnesium with oxygen gas to form magnesium oxide. Since oxygen is a diatomic element, use O2 in the reaction. I think that the equation needing to be balanced is Mg + O2 --> MgO. I'm just not sure how to balance it. Thanks for your help!
Asked by Steven M - Sat Dec 15 15:37:26 2007 - - 3 Answers - 0 Comments
A. Mg + O2 --> MgO on the left you have one magnesium and two oxygens on the right you have one magnesium and one oxygen you need to get two oxygens on the right Mg + O2 --> 2MgO now, we fixed the oxygen, but broke the magnesium. we need another magnesium on the left to balance 2Mg + O2 --> 2MgO balanced! sometimes, you just have to work back and forth
Answered by Steve A - Sat Dec 15 15:43:59 2007
Q. Write the balanced equation for the reaction of magnesium with oxygen gas to form magnesium oxide. Since oxygen is a diatomic element, use O2 in the reaction. I think that the equation needing to be balanced is Mg + O2 --> MgO. I'm just not sure how to balance it. Thanks for your help!
Asked by Steven M - Sat Dec 15 15:37:26 2007 - - 3 Answers - 0 Comments
A. Mg + O2 --> MgO on the left you have one magnesium and two oxygens on the right you have one magnesium and one oxygen you need to get two oxygens on the right Mg + O2 --> 2MgO now, we fixed the oxygen, but broke the magnesium. we need another magnesium on the left to balance 2Mg + O2 --> 2MgO balanced! sometimes, you just have to work back and forth
Answered by Steve A - Sat Dec 15 15:43:59 2007
Choose the answer that shows a correctly balanced equation.?
Q. AgNO3 + Na2 CO3 -> Ag2 CO3 + 2 NaNO3 2 AgNO3 + Na2 CO3 -> Ag2 CO3 + 2 NaNO3 4 AgNO3 + Na2 CO3 -> 4Ag2 CO3 + 2 NaNO3 Choose the answer that shows a correctly balanced equation. Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 4NaNO3 Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 2 NaNO3 Ni(NO3) 2 + NaOH -> Ni(OH) 2 + 2 NaNO3 Choose the answer that shows a correctly balanced equation. 2 Mg + O2 -> 2 MgO 2 Mg + 2O2 -> 2 MgO 3 Mg + O2 ->3 MgO Choose the answer that shows a correctly balanced equation. 2Cu + 3 AgNO3 -> 2 Ag + 2Cu(NO3) 2 4Cu + 2 AgNO3 -> 4 Ag + Cu(NO3) 2 Cu + 2 AgNO3 -> 2 Ag + Cu(NO3) 2
Asked by xlhollisterboi - Wed Nov 21 18:03:06 2007 - - 3 Answers - 0 Comments
A. That would be: Choice 2 for the first question Choice 2 for the second question and Choice 3 for the third. I hated balancing these annoying equations in Chemistry too! Thanks goodness I don't have to do so anymore.
Answered by julie_ramrattan2003 - Wed Nov 21 18:58:02 2007
Q. AgNO3 + Na2 CO3 -> Ag2 CO3 + 2 NaNO3 2 AgNO3 + Na2 CO3 -> Ag2 CO3 + 2 NaNO3 4 AgNO3 + Na2 CO3 -> 4Ag2 CO3 + 2 NaNO3 Choose the answer that shows a correctly balanced equation. Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 4NaNO3 Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 2 NaNO3 Ni(NO3) 2 + NaOH -> Ni(OH) 2 + 2 NaNO3 Choose the answer that shows a correctly balanced equation. 2 Mg + O2 -> 2 MgO 2 Mg + 2O2 -> 2 MgO 3 Mg + O2 ->3 MgO Choose the answer that shows a correctly balanced equation. 2Cu + 3 AgNO3 -> 2 Ag + 2Cu(NO3) 2 4Cu + 2 AgNO3 -> 4 Ag + Cu(NO3) 2 Cu + 2 AgNO3 -> 2 Ag + Cu(NO3) 2
Asked by xlhollisterboi - Wed Nov 21 18:03:06 2007 - - 3 Answers - 0 Comments
A. That would be: Choice 2 for the first question Choice 2 for the second question and Choice 3 for the third. I hated balancing these annoying equations in Chemistry too! Thanks goodness I don't have to do so anymore.
Answered by julie_ramrattan2003 - Wed Nov 21 18:58:02 2007
Help Balancing Chemical Equations!!!!!!?
Q. Omg i dont know how to balance chemical equations.. they r so hard.. i dont get it.. the teacher sucks.. she doesnt know how to explain.. she gave us this paper with these equations and i dont know how to do em... write the balanced equation Mg + AgNO3 --> Ba + H2SO4---> CaCl2 + NaOH --> O2 + H2 --> SiO2 --> Si + O2 <-- i think thats rightt :S lol Balance equations Fe + O2 -> Fe2O3 KClO3 -> KCI + O2 Ca(OH)2 + H2SO4 -> HOH + CaSO4 Cu + AgNO3 -> Cu(NO3)2 + Ag please help! ignore the 2nd problem (balance the equation) . i already did em. :)
Asked by T.I vs T.I.P (PAPER TRIAL, SEPT) - Wed Apr 9 00:16:52 2008 - - 1 Answers - 0 Comments
A. Mg + 2 AgNO3 >> Mg(NO3)2 + 2 Ag Ba + H2SO4 >> BaSO4 + H2 O2 + 2 H2 >> 2 H2O SiO2 >> Si + O2
Answered by Dr.A - Wed Apr 9 00:26:11 2008
Q. Omg i dont know how to balance chemical equations.. they r so hard.. i dont get it.. the teacher sucks.. she doesnt know how to explain.. she gave us this paper with these equations and i dont know how to do em... write the balanced equation Mg + AgNO3 --> Ba + H2SO4---> CaCl2 + NaOH --> O2 + H2 --> SiO2 --> Si + O2 <-- i think thats rightt :S lol Balance equations Fe + O2 -> Fe2O3 KClO3 -> KCI + O2 Ca(OH)2 + H2SO4 -> HOH + CaSO4 Cu + AgNO3 -> Cu(NO3)2 + Ag please help! ignore the 2nd problem (balance the equation) . i already did em. :)
Asked by T.I vs T.I.P (PAPER TRIAL, SEPT) - Wed Apr 9 00:16:52 2008 - - 1 Answers - 0 Comments
A. Mg + 2 AgNO3 >> Mg(NO3)2 + 2 Ag Ba + H2SO4 >> BaSO4 + H2 O2 + 2 H2 >> 2 H2O SiO2 >> Si + O2
Answered by Dr.A - Wed Apr 9 00:26:11 2008
How do I balance out this equation?
Q. 2Mg + O + H O ---> Mg(OH) + MgO I don't just want the answer, because I want to learn how you balance it for future reference. ( I need to balance it out so I can work out the atom economy) thankyou :D
Asked by Pip - Thu Sep 18 11:38:51 2008 - - 7 Answers - 0 Comments
A. The unbalanced equation is Mg + O2 + H2O ---> Mg(OH)2 + MgO In the equation Mg, O and H atoms are involved. Try to find out the atom which is present in least number of molecules (entities) in the reactant and product side. It is H which is present in one entity in reactant side and one entity in the product side. First of all try to balance H in the equation. There are 2 H on reactant side and 2 H on product side. So equation is already balanced for H. Threfore nothing is to be done to balance H. Mg is present in one entity in the reactant side and 2 entities in the product side. But O is present in two entities in reactant side and two entities in the product side. So it will be more difficult to balance O than Mg.… [cont.]
Answered by trikha - Thu Sep 18 12:06:41 2008
Q. 2Mg + O + H O ---> Mg(OH) + MgO I don't just want the answer, because I want to learn how you balance it for future reference. ( I need to balance it out so I can work out the atom economy) thankyou :D
Asked by Pip - Thu Sep 18 11:38:51 2008 - - 7 Answers - 0 Comments
A. The unbalanced equation is Mg + O2 + H2O ---> Mg(OH)2 + MgO In the equation Mg, O and H atoms are involved. Try to find out the atom which is present in least number of molecules (entities) in the reactant and product side. It is H which is present in one entity in reactant side and one entity in the product side. First of all try to balance H in the equation. There are 2 H on reactant side and 2 H on product side. So equation is already balanced for H. Threfore nothing is to be done to balance H. Mg is present in one entity in the reactant side and 2 entities in the product side. But O is present in two entities in reactant side and two entities in the product side. So it will be more difficult to balance O than Mg.… [cont.]
Answered by trikha - Thu Sep 18 12:06:41 2008
CHEMISRY: Balancing Equations-- balance each equation below by inserting coefficients?
Q. Cu(s) + O2(g) -->CuO(s) Mg(s) + O2(g) --> MgO(s) CuCO3(s) --> CuO(s) + CO2(g)
Asked by ca - Wed Dec 13 22:10:49 2006 - - 5 Answers - 0 Comments
A. 2Cu(s) + O2(g) --> 2CuO(s) 2Mg(s) + O2(g) --> 2Mg(O(s) CuCO3(s) --> CuO(s) + CO2(g) The amount of atoms or mass of each of the atoms on each side should balance.
Answered by unknown - Wed Dec 13 23:32:58 2006
Q. Cu(s) + O2(g) -->CuO(s) Mg(s) + O2(g) --> MgO(s) CuCO3(s) --> CuO(s) + CO2(g)
Asked by ca - Wed Dec 13 22:10:49 2006 - - 5 Answers - 0 Comments
A. 2Cu(s) + O2(g) --> 2CuO(s) 2Mg(s) + O2(g) --> 2Mg(O(s) CuCO3(s) --> CuO(s) + CO2(g) The amount of atoms or mass of each of the atoms on each side should balance.
Answered by unknown - Wed Dec 13 23:32:58 2006
How do you predict the product and balance an equation?
Q. For example, 1.) K + O2 ---> 2.) CaCl2 ---> 3.) Mg + CuSO4 --->
Asked by Da Deeker - Wed Feb 25 09:31:02 2009 - - 1 Answers - 0 Comments
A. 4 K + O2 >> 2 K2O CaCl2 >> Ca + Cl2 Mg + CuSO4 >> MgSO4 + Cu
Answered by Dr.A - Wed Feb 25 10:05:52 2009
Q. For example, 1.) K + O2 ---> 2.) CaCl2 ---> 3.) Mg + CuSO4 --->
Asked by Da Deeker - Wed Feb 25 09:31:02 2009 - - 1 Answers - 0 Comments
A. 4 K + O2 >> 2 K2O CaCl2 >> Ca + Cl2 Mg + CuSO4 >> MgSO4 + Cu
Answered by Dr.A - Wed Feb 25 10:05:52 2009
2 moles of Mg and 5 moles of O2 are placed in a reaction vessel, and the Mg is ignited.?
Q. a) Give the balanced equation for this reaction b) Identify the limiting reagent. Give reasons for your answer c) What is the maximum amount of MgO that can be formed? d) How much of one of the reactants remains unreacted? I will really appreciate an answer. Thanks Guys
Asked by Jay13 - Thu Apr 9 04:41:56 2009 - - 2 Answers - 0 Comments
A. 2 Mg + O2 = 2 MgO Mg is the limiting reagent. Two moles of Mg require only ONE mole of O2. 1 MgO Four moles of oxygen will remain unreacted.
Answered by Drogo Boffin - Thu Apr 9 04:51:55 2009
Q. a) Give the balanced equation for this reaction b) Identify the limiting reagent. Give reasons for your answer c) What is the maximum amount of MgO that can be formed? d) How much of one of the reactants remains unreacted? I will really appreciate an answer. Thanks Guys
Asked by Jay13 - Thu Apr 9 04:41:56 2009 - - 2 Answers - 0 Comments
A. 2 Mg + O2 = 2 MgO Mg is the limiting reagent. Two moles of Mg require only ONE mole of O2. 1 MgO Four moles of oxygen will remain unreacted.
Answered by Drogo Boffin - Thu Apr 9 04:51:55 2009
Balance the following equation by giving the needed coefficients. PLEASE HELP!?
Q. Mg + O2 --> MgO Zn + AgCl --> ZnCl2 + Ag CH4 + O2 --> CO2 + H2O Na + S8 --> Na2S Al2(SO4)3 + BaCl2 --> BaSO4 + AlCl3
Asked by shawty2fresh4u - Tue Jun 24 16:49:24 2008 - - 2 Answers - 0 Comments
A. 2Mg+ O2--->2MgO Zn+ 2AgCl--->ZnCl2+2 Ag CH4+ 2O2--->CO2+2H2O 16Na+S8--->8Na2S Al2(SO4)3+ 3BaCl2--->2AlCl3+ 3BaSO4
Answered by science teacher - Tue Jun 24 18:02:02 2008
Q. Mg + O2 --> MgO Zn + AgCl --> ZnCl2 + Ag CH4 + O2 --> CO2 + H2O Na + S8 --> Na2S Al2(SO4)3 + BaCl2 --> BaSO4 + AlCl3
Asked by shawty2fresh4u - Tue Jun 24 16:49:24 2008 - - 2 Answers - 0 Comments
A. 2Mg+ O2--->2MgO Zn+ 2AgCl--->ZnCl2+2 Ag CH4+ 2O2--->CO2+2H2O 16Na+S8--->8Na2S Al2(SO4)3+ 3BaCl2--->2AlCl3+ 3BaSO4
Answered by science teacher - Tue Jun 24 18:02:02 2008
Four multiple choice chem questions on balancing equations... please help?
Q. 1. What coefficients would balance the following equation? __Al + __O2 mc046-1.jpg__Al2O3 a) 2Al + 3O2 ---> mc046-2.jpg1Al2O3 b) 2Al + 3O2 mc046-3.jpg---> 2Al2O3 c) 3Al + 3O2 mc046-4.jpg---> 2Al2O3 d) 4Al + 3O2 mc046-5.jpg---> 2Al2O3 2. What set of coefficients would balance the following equation? Mg + AlCl3 mc052-1.jpgAl + MgCl2 a) 2Mg + AlCl3 ---> mc052-2.jpgAl + 2MgCl2 b) 3Mg + 2AlCl3 mc052-3.jpg---> 2Al + 3MgCl2 c) Mg + 2AlCl3 ---> mc052-4.jpg2Al + MgCl2 d) 3Mg + 4AlCl3 ---> mc052-5.jpg4Al + 3MgCl2 3. Why is the following equation invalid? Al + 2O2 mc055-1.jpgAl2O3 a)An atom of aluminum (Al) is created in the reaction. b) An atom of oxygen (O) is destroyed in the reaction. c)The equation violates the Law of Conservation… [cont.]
Asked by Live Your Dreams [HFK] - Sun Sep 6 17:02:48 2009 - - 2 Answers - 0 Comments
A. 1. d is the only answer that has the atoms balanced on both sides. 2. b is the only answer that has the atoms balanced on both sides. 3. d. 4. You start with one reactant and obtain two products. That is the definition of a decomposition reaction c.
Answered by groma - Sun Sep 6 17:15:21 2009
Q. 1. What coefficients would balance the following equation? __Al + __O2 mc046-1.jpg__Al2O3 a) 2Al + 3O2 ---> mc046-2.jpg1Al2O3 b) 2Al + 3O2 mc046-3.jpg---> 2Al2O3 c) 3Al + 3O2 mc046-4.jpg---> 2Al2O3 d) 4Al + 3O2 mc046-5.jpg---> 2Al2O3 2. What set of coefficients would balance the following equation? Mg + AlCl3 mc052-1.jpgAl + MgCl2 a) 2Mg + AlCl3 ---> mc052-2.jpgAl + 2MgCl2 b) 3Mg + 2AlCl3 mc052-3.jpg---> 2Al + 3MgCl2 c) Mg + 2AlCl3 ---> mc052-4.jpg2Al + MgCl2 d) 3Mg + 4AlCl3 ---> mc052-5.jpg4Al + 3MgCl2 3. Why is the following equation invalid? Al + 2O2 mc055-1.jpgAl2O3 a)An atom of aluminum (Al) is created in the reaction. b) An atom of oxygen (O) is destroyed in the reaction. c)The equation violates the Law of Conservation… [cont.]
Asked by Live Your Dreams [HFK] - Sun Sep 6 17:02:48 2009 - - 2 Answers - 0 Comments
A. 1. d is the only answer that has the atoms balanced on both sides. 2. b is the only answer that has the atoms balanced on both sides. 3. d. 4. You start with one reactant and obtain two products. That is the definition of a decomposition reaction c.
Answered by groma - Sun Sep 6 17:15:21 2009
How do you solve this balancing chemical equations problem?
Q. I am stop on my science homework. I get how to balance equations, but these problems are in a tricky format. For example: [ ]Mg+ [ ]O2 -> [ ] MgO Mg= Mg= O= O= I have to fill the blank boxes and also the space after the = signs. There were no directions whatsoever, so if anyone has seem this before. Please help!!!
Asked by yeayoung_k - Fri Jan 2 10:15:51 2009 - - 6 Answers - 0 Comments
A. Wait...I think there was a typographical error in the equation. The first reactant is supposed to be Mg. The numbers that should go in the blank boxes should be 2,1 and 2. First, you have to remember that equations should be balanced (have the same number of atoms on both sides of the equation). This is in keeping with the law of conservation of mass. On the left side of the equation, there are 2 atoms of O and 1 atom of Mg. On the right side, there is only one of each atom (Mg and O). As you can see, the total number of atoms on both sides is not equal. You have to make this number equal by placing numbers called coefficients beside each atom. If there's only one present, don't write any number. In this case, put 2 beside Mg (on… [cont.]
Answered by rubidium.chloride - Fri Jan 2 10:38:05 2009
Q. I am stop on my science homework. I get how to balance equations, but these problems are in a tricky format. For example: [ ]Mg+ [ ]O2 -> [ ] MgO Mg= Mg= O= O= I have to fill the blank boxes and also the space after the = signs. There were no directions whatsoever, so if anyone has seem this before. Please help!!!
Asked by yeayoung_k - Fri Jan 2 10:15:51 2009 - - 6 Answers - 0 Comments
A. Wait...I think there was a typographical error in the equation. The first reactant is supposed to be Mg. The numbers that should go in the blank boxes should be 2,1 and 2. First, you have to remember that equations should be balanced (have the same number of atoms on both sides of the equation). This is in keeping with the law of conservation of mass. On the left side of the equation, there are 2 atoms of O and 1 atom of Mg. On the right side, there is only one of each atom (Mg and O). As you can see, the total number of atoms on both sides is not equal. You have to make this number equal by placing numbers called coefficients beside each atom. If there's only one present, don't write any number. In this case, put 2 beside Mg (on… [cont.]
Answered by rubidium.chloride - Fri Jan 2 10:38:05 2009
Balancing equations: Am I right?
Q. I'm really bad at anything chemistry but I'm trying. I tried to balance these equations, please tell me if I'm right, if I'm not please help. Thank you. Synthesis Mg(s) + O2*(g) ---> MgO(s) My equation: Mg(s) + O2*(g) ---> 2MgO(s) Single replacement: Zn(s) + HCl(aq) ---> ZnCl2*(aq) + H2*(g) My equation: Zn(s) + 2HCl(aq) ---> ZnCl2*(aq) + H2*(g) Please Help me balance this one: Na2*SO3*(aq) + HCl(aq) ---> NaCl(aq) + H2*O(l) + SO2*(g) P.S. this * means that they are not coefficients. Please and Thank you.
Asked by Mystery - Fri Nov 14 09:32:58 2008 - - 3 Answers - 0 Comments
A. Na2SO3 + 2 HCl >> 2 NaCl + H2O + SO2
Answered by Dr.A - Fri Nov 14 09:45:51 2008
Q. I'm really bad at anything chemistry but I'm trying. I tried to balance these equations, please tell me if I'm right, if I'm not please help. Thank you. Synthesis Mg(s) + O2*(g) ---> MgO(s) My equation: Mg(s) + O2*(g) ---> 2MgO(s) Single replacement: Zn(s) + HCl(aq) ---> ZnCl2*(aq) + H2*(g) My equation: Zn(s) + 2HCl(aq) ---> ZnCl2*(aq) + H2*(g) Please Help me balance this one: Na2*SO3*(aq) + HCl(aq) ---> NaCl(aq) + H2*O(l) + SO2*(g) P.S. this * means that they are not coefficients. Please and Thank you.
Asked by Mystery - Fri Nov 14 09:32:58 2008 - - 3 Answers - 0 Comments
A. Na2SO3 + 2 HCl >> 2 NaCl + H2O + SO2
Answered by Dr.A - Fri Nov 14 09:45:51 2008
Can you help me with a Balanced Equation?
Q. 1. Mg + O2 ---> Mg O 2. Al2 O3 ---> Al + O2 solve the equation and show your work... from what i have learned... C2 H5 OH + O2 ---> CO2 + H2O 2 5 1 1 + 2 ---> 1 2 + 2 1 2 5 1 1 + 6 ---> 2 4 6 This is what my teacher has taught me and i dont get it its just an example so thank you if you answered my question i really appreciate it
Asked by dhushdcub - Mon Dec 17 18:39:48 2007 - - 1 Answers - 0 Comments
A. I'll try and explain it first, then give you the answer. The example is a good one, just incomplete. Balancing equations means you have the same number of each molecule on each side of the arrow so in C2H5OH + O2 > CO2 + H2O you have 2 C on one side and 1 C on the other. You have to make sure you have the same of everything on both sides, so the finished example would be C2H5OH + 3O2 > 2CO2 + 3H2O. Your answers are: 2Mg + 02 > 2MgO and 2Al2O3 > 4Al + 3O2
Answered by Dave T - Mon Dec 17 19:02:39 2007
Q. 1. Mg + O2 ---> Mg O 2. Al2 O3 ---> Al + O2 solve the equation and show your work... from what i have learned... C2 H5 OH + O2 ---> CO2 + H2O 2 5 1 1 + 2 ---> 1 2 + 2 1 2 5 1 1 + 6 ---> 2 4 6 This is what my teacher has taught me and i dont get it its just an example so thank you if you answered my question i really appreciate it
Asked by dhushdcub - Mon Dec 17 18:39:48 2007 - - 1 Answers - 0 Comments
A. I'll try and explain it first, then give you the answer. The example is a good one, just incomplete. Balancing equations means you have the same number of each molecule on each side of the arrow so in C2H5OH + O2 > CO2 + H2O you have 2 C on one side and 1 C on the other. You have to make sure you have the same of everything on both sides, so the finished example would be C2H5OH + 3O2 > 2CO2 + 3H2O. Your answers are: 2Mg + 02 > 2MgO and 2Al2O3 > 4Al + 3O2
Answered by Dave T - Mon Dec 17 19:02:39 2007
cheM masters!!can you please complete and balance the chemical equation of this reactions:?
Q. 1. S8 + O2 --->___ 2. Mg + O2 --->___ 3. KClO3 --->heat___+___ 4.NaHCO3 --->heat___+___+___ 5. Zn + HCl --->___+___ 6. Fe + CuSO4 --->___+___ 7. Ba(NO3)2 + K2CrO4 --->___+___ 8CaCO3 + HCl ---> ___+___ FeCl3 + K4Fe(CN)6 --->___ +___+___ GOD bLESS!!!
Asked by chadilu - Mon Jul 14 20:06:05 2008 - - 1 Answers - 0 Comments
A. 1. S8 + 8O2 => 8SO2 2. 2Mg + O2 => 2MgO 3. 2KClO3 => 2KCl + 3O2 4. 2NaHCO3 => Na2CO3 + H2O + CO2 5. Zn + 2HCl => ZnCl2 + H2 6. Fe + CuSO4 => FeSO4 + Cu 7. Ba(NO3)2 + K2CrO4 => BaCrO4 + 2KNO3 8. CaCO3 + 2HCl => CaCl2 + H2O + CO2 9. 4FeCl3 + 3K4Fe(CN)6 => 12KCl + Fe4(Fe(CN)6)3
Answered by HPV - Mon Jul 14 20:30:46 2008
Q. 1. S8 + O2 --->___ 2. Mg + O2 --->___ 3. KClO3 --->heat___+___ 4.NaHCO3 --->heat___+___+___ 5. Zn + HCl --->___+___ 6. Fe + CuSO4 --->___+___ 7. Ba(NO3)2 + K2CrO4 --->___+___ 8CaCO3 + HCl ---> ___+___ FeCl3 + K4Fe(CN)6 --->___ +___+___ GOD bLESS!!!
Asked by chadilu - Mon Jul 14 20:06:05 2008 - - 1 Answers - 0 Comments
A. 1. S8 + 8O2 => 8SO2 2. 2Mg + O2 => 2MgO 3. 2KClO3 => 2KCl + 3O2 4. 2NaHCO3 => Na2CO3 + H2O + CO2 5. Zn + 2HCl => ZnCl2 + H2 6. Fe + CuSO4 => FeSO4 + Cu 7. Ba(NO3)2 + K2CrO4 => BaCrO4 + 2KNO3 8. CaCO3 + 2HCl => CaCl2 + H2O + CO2 9. 4FeCl3 + 3K4Fe(CN)6 => 12KCl + Fe4(Fe(CN)6)3
Answered by HPV - Mon Jul 14 20:30:46 2008
physical science help?
Q. how do you balance equations such as Mg + O2 -> MgO
Asked by Ms. Reaves - Fri Jan 30 22:11:18 2009 - - 8 Answers - 0 Comments
Q. how do you balance equations such as Mg + O2 -> MgO
Asked by Ms. Reaves - Fri Jan 30 22:11:18 2009 - - 8 Answers - 0 Comments
kindly tell me this following balancing equation is correct?
Q. Mg+O2-->Mgo
Asked by ramamurthy s - Tue Nov 27 10:41:35 2007 - - 4 Answers - 0 Comments
A. its not balanced the balanced equations will have same number of quantities 2Mg+O2-->2MgO
Answered by i dont know - Tue Nov 27 10:49:49 2007
Q. Mg+O2-->Mgo
Asked by ramamurthy s - Tue Nov 27 10:41:35 2007 - - 4 Answers - 0 Comments
A. its not balanced the balanced equations will have same number of quantities 2Mg+O2-->2MgO
Answered by i dont know - Tue Nov 27 10:49:49 2007
I need help with completing and balancing each equation by predicting the products formed.?
Q. 1.) Fe(solid)+CuCl2(aqeaous)- - 2.) C2H6(gas)+O2(gas)-- 3.) NaCl(aqeous)+NH4OH(aqueou s)-- 4.) H2O-- 5.) Cu(solid)+O2(gas)-- 6.) Al2O3-- 7.) Mg(solid)+HCl(aqeuous)-- 8.) LiNO3(aqeous)+MgCl2(aqeou s)-- && then I need 2 balance them [Dont have 2 if u dont want.] but the MAJOR issue is the 8 problems.. can anyone do aNd explain? THANKS. SO MUCH. chemistry.. whoa.
Asked by BahamaBabi - Tue Oct 9 20:35:21 2007 - - 1 Answers - 0 Comments
A. I will do number eight. 2LiNO3 + MgCl2 >2 LiCl + Mg(NO3)2 See, keep your atoms and charges balanced.
Answered by jonmcn49 - Tue Oct 9 20:47:19 2007
Q. 1.) Fe(solid)+CuCl2(aqeaous)- - 2.) C2H6(gas)+O2(gas)-- 3.) NaCl(aqeous)+NH4OH(aqueou s)-- 4.) H2O-- 5.) Cu(solid)+O2(gas)-- 6.) Al2O3-- 7.) Mg(solid)+HCl(aqeuous)-- 8.) LiNO3(aqeous)+MgCl2(aqeou s)-- && then I need 2 balance them [Dont have 2 if u dont want.] but the MAJOR issue is the 8 problems.. can anyone do aNd explain? THANKS. SO MUCH. chemistry.. whoa.
Asked by BahamaBabi - Tue Oct 9 20:35:21 2007 - - 1 Answers - 0 Comments
A. I will do number eight. 2LiNO3 + MgCl2 >2 LiCl + Mg(NO3)2 See, keep your atoms and charges balanced.
Answered by jonmcn49 - Tue Oct 9 20:47:19 2007
complete and balance equations..?
Q. I need help completing and balancing the following equations in chemistry. i know it is easy but i am very confused on how to do this. please help..thanks Mg + O2 ---> Mg + S8 ---> Mg + N2 ---> MgO + H2O --->
Asked by rabbit - Sat Sep 20 17:20:47 2008 - - 1 Answers - 0 Comments
A. First one is an oxidation reaction, so we get Mg + O2 --> MgO In fact, the first three are just synthesis reactions, so just combine the cation and anion, remembering to take into consideration their carrying capabilities. Work from that. The last one is MgO + H2O --> Mg(OH)2(s), which follow the general equation when an oxide reacts with water.
Answered by /\/ ? - Sat Sep 20 18:38:28 2008
Q. I need help completing and balancing the following equations in chemistry. i know it is easy but i am very confused on how to do this. please help..thanks Mg + O2 ---> Mg + S8 ---> Mg + N2 ---> MgO + H2O --->
Asked by rabbit - Sat Sep 20 17:20:47 2008 - - 1 Answers - 0 Comments
A. First one is an oxidation reaction, so we get Mg + O2 --> MgO In fact, the first three are just synthesis reactions, so just combine the cation and anion, remembering to take into consideration their carrying capabilities. Work from that. The last one is MgO + H2O --> Mg(OH)2(s), which follow the general equation when an oxide reacts with water.
Answered by /\/ ? - Sat Sep 20 18:38:28 2008
Balance the following chemical equation by filling in the correct coeficient on the right-hand side.?
Q. H2+Cl2->___ HCl 2if you start with 5 mole of O2 in the reaction 2mg+O2->2MgO, how many moles of Mg will u need? A 4mol B 5 mol C 8mol D 10 mol 3. When iron rects with oxygen to form rust, each ion atom A losses three ions B loses three electrons C gains three ions D gains three electrons
Asked by evillittlegirl420 - Mon May 12 20:36:03 2008 - - 2 Answers - 0 Comments
Q. H2+Cl2->___ HCl 2if you start with 5 mole of O2 in the reaction 2mg+O2->2MgO, how many moles of Mg will u need? A 4mol B 5 mol C 8mol D 10 mol 3. When iron rects with oxygen to form rust, each ion atom A losses three ions B loses three electrons C gains three ions D gains three electrons
Asked by evillittlegirl420 - Mon May 12 20:36:03 2008 - - 2 Answers - 0 Comments
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