(NH4)2CO3à NH3 + CO2 + H2O For this unbalanced chemical equation, what is the coefficient for carbon dioxide when the equation is balanced? A. 1 B. 2 C. 3 D. 4

The answer to your question is the letter A. 1

Explanation:

Data

Chemical reaction

                   (NH₄)₂CO₃  ⇒   NH₃  +  CO₂  + H₂O

               Reactants    Elements     Products

                      2            Nitrogen             1

                       1            Carbon                1

                       8           Hydrogen            5

                       3           Oxygen                3

This reaction is unbalanced

                   (NH₄)₂CO₃  ⇒   2NH₃  +  CO₂  + H₂O

               Reactants    Elements     Products

                      2            Nitrogen             2

                       1            Carbon                1

                       8           Hydrogen            8

                       3           Oxygen                3

Now, the reaction is balanced,

The coefficient for Carbon dioxide is 1

The coefficient for carbon dioxide (CO2) is 1 (option A) is correct.

Explanation:

Step 1: The unbalanced equation

(NH4)2CO3 ⇒ NH3 + CO2 + H2O

Step 2: Balancing the equation

(NH4)2CO3 ⇒ NH3 + CO2 + H2O

On the left side, we have 2x N (in (NH4)2CO3), on the right side we have 1x N (in NH3). To balance the amount of N on both sides we have to multiply NH3 on the right side by 2. Now the equation is balanced.

(NH4)2CO3 ⇒ 2NH3 + CO2 + H2O

The coefficient for carbon dioxide (CO2) is 1 (option A) is correct.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.