Question Balance the following equations: 1) C2H402+_02->_C02+ _H20 2) V205+ _CaS→_Ca0+ V2S5 3) S8+_O2->_SO2

Answer: 1) 0 C2H4O2 + 0 O2 -> 0 CO2 + 0 H2O (balanced) 2) V2O5 + CaS -> CaO + V2S5 just additional info: V2O5 is divanadium pentaoxide LHS (Left hand side) V: 2 O: 5 Ca: 1 S: 1 x 5 [to balance with the right hand side of the equation] RHS (Right hand side) V: 2 O: 1 x 5 [to balance with the left hand side of the equation] Ca: 1 S: 5 When you balance any elements, you have to balance the whole chemical compound. Thus, V2O5 + 5 CaS –> 5 CaO + V2S5 LHS CHECK: V: 2 O: 5 Ca: 5 S: 5 RHS CHECK: V: 2 O: 5 Ca: 5 S: 5 3) S8 + O2 -> SO2 LHS: S: 8 O: 2 RHS: S: 1 x 8 [to balance with LHS] O: 2 When you balance any elements, you have to balance the whole chemical compound. S8 + O2 -> 8 SO2 When we add 8 to the RHS, it gives us 8S, 16 O. In order to balance that into the RHS, I need to multiply the O2 by 8, which will give 8(O2) = 16 O particles. Therefore, S8 + 8 O2 –> 8 SO2 is the final answer for (3). Log in to Reply

Answer:1) 0 C2H4O2 + 0 O2 -> 0 CO2 + 0 H2O (balanced)

2) V2O5 + CaS -> CaO + V2S5

just additional info: V2O5isdivanadiumpentaoxideLHS (Left hand side)

V: 2

O: 5

Ca: 1

S: 1 x 5 [to balance with the right hand side of the equation]

RHS (Right hand side)

V: 2

O: 1 x 5 [to balance with the left hand side of the equation]

Ca: 1

S: 5

Whenyoubalanceanyelements,youhavetobalancethewholechemicalcompound.Thus,

V2O5 +V2S5

5CaS–>5CaO+LHS CHECK:

V: 2

O: 5

Ca: 5

S: 5

RHS CHECK:

V: 2

O: 5

Ca: 5

S: 5

3) S8 + O2 -> SO2

LHS:

S: 8

O: 2

RHS:

S: 1 x 8 [to balance with LHS]

O: 2

When you balance any elements, you have to balance the whole chemical compound.S8 + O2 ->

8SO2When we add 8 to the RHS, it gives us 8S, 16 O.

In order to balance that into the RHS, I need to multiply the O2 by 8, which will give 8(O2) = 16 O particles.

Therefore,

S8+8O2–>8SO2isthefinalanswerfor(3).