University:
San Jose State University
Course:
CHEM 10 | Chemical Calculations and Concepts
Academic year:

2022
Views:

175

Pages:

1
Author:

Alexa Livingston

1) 3 ZnSO3 + 2 Co(BrO2)3 Æ 3 Zn(BrO2)2 + Co2(SO3)3 2) Mg3N2(s) + 6 H2O(l) Æ 3 Mg(OH)2(aq) + 2 NH3(l) 3) NCl3(g) + 3 H2O(l) Æ 3 HClO(aq) + NH3(l) 4) N2O5(g) + H2O(l) Æ 2 HNO3(aq) 5) 4 FeO(s) + O2(g) Æ 2 Fe2O3(s) 6) Fe2O3(s) + 3 CO(g) Æ 2 Fe(s) + 3 CO2(g) 7) PCl5(g) + 4 H2O(l) Æ H3PO4(aq) + 5 HCl(aq) 8) Al2(CO3)3(s) + 6 LiNO2(aq) Æ 2 Al(NO2)3(aq) + 3 Li2CO3(aq) 9) PCl3(g) + 3 H2O(l) Æ H3PO3(aq) + 3 HCl(aq) 10) P2O5(g) + 3 H2O(l) Æ 2 H3PO4(aq) 11) Ni(NO3)2(aq) + 2 NaOH(aq) Æ Ni(OH)2(s) + 2 NaNO3(aq) 12) (NH4)2Cr2O7 Æ N2(g) + Cr2O3(s) + 4 H2O(l) 13) 3 H2SO4(aq) + 2 Bi(OH)3(s) Æ Bi2(SO4)3(aq) + 6 H2O(l) 14) 4 Sb3(AsO4)5(s) + 15 TiO2(s) Æ 6 Sb2O5(s) + 5 Ti3(AsO4)4(s) 15) 2 C8H18(l) + 25 O2(g) Æ 18 H2O(l) + 16 CO2(g) 16) 3 H2(g) + N2(g) Æ 2 NH3(l) 17) 3 PbO + 2 NH3(g) Æ 3 Pb(s) + N2(g) + 3 H2O(l) 18) 2 Fe(s) + 3 Cl2(g) Æ 2 FeCl3(aq) 19) Cu(s) + 2 H2SO4(aq Æ CuSO4(aq) + SO2(g) + 2 H2O(l) 20) C4H10O(l) + 6 O2(g) Æ 5 H2O(l) + 4 CO2(g) 21) Cd(NO3)2(aq) + Na2S(aq) Æ CdS(s) + 2 NaNO3(aq) 22) 4 KClO3(aq) Æ 3 KClO4(aq) + KCl(aq) 23) 2 HC2H3O2(aq) + Ca(OH)2(aq) Æ Ca(C2H3O2)2(aq) + 2 H2O(l) 24) 2 H3PO4(aq) + 3 Na2CO3(aq) Æ 2 Na3PO4(aq) + 3 H2O(l) + 3 CO2(g) 25) 2 H3AsO4(aq) + 3 Ba(OH)2(aq) Æ Ba3(AsO4)2(s) + 6 H2O(l) A note about the subscripts: Some of these you could have done with the solubility rules and some you couldn’t. These are fairly accurate if all of the reactions take place in water. You will only be asked to predict subscripts based on the solubility rules, acids, CO2 and H2O, so if you can’t do most of these… DON’T FREAK OUT! Try what you can.