Question

Is the chemical equation BALANCED or UNBALANCED?

H2O ------> H2 + O2

Answer 1

HELLO MATE . HERE IS UR ANSWER

H2O - H2 + O2

$balanced \: equation \:$

Answer 2

2H2 + O2 = 2H2O.

Explanation:

To balanced the chemical equation as given below:

From the original equation, you first need to write each component separately.

H2 + O2 = H2O

Left side: H = 2 ; O = 2

(number based on the subscript)

Right side: H = 2 ; O = 1

(number based on the subscripts; no subscript means that the element is just 1).

Notice that the number of H is already balance but the number of O is not. In order to balance the O, you need to multiply the element by 2, but you CANNOT do this by simply changing the subscript.

Hence,

H2 + O2 = 2H2O

Left side: H = 2 ; O = 2

Right side: H = 2 x 2 = 4 ; O = 1 x 2 = 2

Now, notice that the number of O is now balance (both are 2) but the number of H is not (since

but the number of H is not (since H2O is a substance and not an element, you need to multiply everything by 2).

So, what to do?

You also multiply the left side H by 2. Hence,

2H2 + O2 = 2H2O

Left side: H = 2 x 2 = 4 ; O = 2

Right side: H = 2 x 2 = 4 ; O = 1 x 2 = 2

Therefore, The equation is now balanced.