CHEM Q3|P2

Complete and balance a chemical equation for the combustion of butane: C4H10

*2*C4H10 + *13*O2 --> *8*CO2 + *10*H2O

Na3PO4 + MgCl2 --> Mg3(PO4)2 + NaCl Is this balance?

*2*Na3PO4 + *3*MgCl2 --> Mg3(PO4)2 + *6*NaCl

Define which is oxidize and reduce: 2Al(s) + 3Br2(l) → 2AlBr3(s)

Al = oxidize (0 - +3) Br = reduce (0 - -1)

Define which is oxidize and reduce: Cl2(g) + 2NaBr(aq) → 2NaCl(aq) + Br2(g)

Br− is oxidized, Cl2 is reduced

CH4(g) + O2(g) -> CO2(g) + H2O(g) Is this balance?

CH4(g) + *2*O2(g) -> CO2(g) + *2*H2O(g)

Balance equation and identify the type of reaction: ___ C7H14(l) + ___ O2(g) → ___ CO2(g) + ___ H2O(l)

Combustion _2_ C7H14(l) + _21_ O2(g) → _14_ CO2(g) + _14_ H2O(l)

Define which is oxidize and reduce: 2FeSO4(aq) + CuSO4(aq) → Fe2(SO4)3(aq) + Cu(s)

Fe is oxidize = +2 - +3 Cu is reduce = +3 - 0

Define which is oxidize and reduce: 2Fe^3+(aq) + Sn^2+(aq) → 2Fe^2+(aq) + Sn^4+(aq)

Fe^3+ is reduce and Sn^2+ is oxidize

Define which is oxidize and reduce: I2O5 (s) + 5CO(g) --> I2(s) + 5CO2(g)

Iodine is reduced and C is oxidize

Define which is oxidize and reduce: 3 SO2 (g) + 2 HNO3 (aq) + 2 H2O (l) --> 3 H2SO4 (aq) + 2 NO (g)

Nitrogen is reduce went from +5 to +2 Sulfur is oxidized went from +4 to +6

Define which is oxidize and reduce: PBr3(l) + 3H2O(l) --> H3PO3(aq) + HBr(aq)

No redox

Define which is oxidize and reduce: 2PbO(s) → 2Pb(s) + O2(g)

O2− is oxidized, Pb2+ is reduced

P4(s) + Br2(l) --> Br3(g) Is this balance?

P4(s) + *6*Br2(l) --> *4*Br3(g)

Define which is oxidize and reduce: 2SO2(g) + O2(g) → 2SO3(g)

S is oxidized = +4 - +6 O is reduced = 0 - -2

Balance equation and identify the type of reaction: ___ Fe(s) + ___ H2SO4(aq) → ___ Fe2(SO4)3(aq) + ___ H2(g)

Single Replacement _2_ Fe(s) + _3_ H2SO4(aq) → __ Fe2(SO4)3(aq) + _3_ H2(g)

Define which is oxidize and reduce: Zn(s)+Cl2(g)→ZnCl2(s)

Zn is oxidized, Cl2 is reduced

Given the reaction: 2C3H7OH(l) + 9O2(g) → 6CO2(g) + 8H2O(g) a. How many molecules of oxygen gas are on the reactants side? b. How many molecule of CO2 are on the products side of the reaction? c. How many atoms of H are on the reactants side? d. How many atoms of C are in one molecule of CO2? e. How many atoms of O are on the reactants side?

a. 9 b. 6 c. 16 d. 1 e. 20

Balance equation and identify the type of reaction: ___ C7H12(l) + ___ O2(g) → ___ CO2(g) + ___ H2O(l)

combustion *1* C7H12(l) + *10* O2(g) → *7* CO2(g) + *6* H2O(l)

Balance equation and identify the type of reaction: ___ H2CO3(aq) → ___ CO2(g) + ___ H2O(l)

decomposition balance ___ H2CO3(aq) → ___ CO2(g) + ___ H2O(l)

Balance equation and identify the type of reaction: ___ AlCl3(aq) + ___ Pb(NO3)2(aq) → ___ PbCl2(s) + ___ Al(NO3)3(aq)

double replacement *2*AlCl3(aq) + *3* Pb(NO3)2(aq) → *3* PbCl2(s) + *2* Al(NO3)3(aq)