Question

Balance this equation by filling in the missing coefficient: 6 CO2 + 6 H2O + Sunlight = C6H12O6 + ?? O2

Answer 1

Given that,

The equation is : $6CO_2+6H_2O+\text{sunlight}\rightarrow C_6H_{12}O_6+?O_2$

To find,

The missing coefficients.

Solution,

$6CO_2+6H_2O+\text{sunlight}\rightarrow C_6H_{12}O_6+?O_2$

Let the value of ? is x.

It is the equation of photosynthesis.

In LHS,

Carbon atoms = 6

Hydrogen atom = 12

Oxygen atom = 18

In RHS,

Carbon atoms = 6

Hydrogen atom = 12

Oxygen atom = 6

If we make the equation as $6CO_2+6H_2O+\text{sunlight}\rightarrow C_6H_{12}O_6+6O_2$

No the number of atoms in RHS = 6+ 12 = 18

It means if we take the value of ? as 6 the equation will be balanced.

Hence, the correct option is (B) "6".