BRAINLIESTT ASAP! PLEASE HELP :)

Chemistry

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer:

The change during the burning of a match stick is a irreversible chemical change while the change when a liquid starts boiling is reversible chemical change.

You Helped Me Lol

Explanation:

You might be interested in

What elements are in hay

Ivenika [448]

I looked it up for u

4 0

4 years ago

Read 2 more answers

78.5 mol of P4O10 contains how many moles of P?

MArishka [77]

<span>4 x 36 moles. of Phosporus and 10 x 36 of Oxygen. I hope this helps. (:</span>

7 0

3 years ago

When NH3(g) reacts with N2O(g) to form N2(g) and H2O(g), 105 kcal of energy are evolved for each mole of NH3(g) that reacts. Wri

Ganezh [65]

Answer : The balanced chemical equation is,

$2NH_3(g)+3N_2O(g)\rightarrow 4N_2(g)+3H_2O(g)+210kcal$

Explanation :

Balanced chemical equation : It is defined as the number of atoms of individual elements present on the reactant side must be equal to the number of atoms of individual elements present on product side.

The given unbalanced chemical reaction is,

$NH_3(g)+N_2O(g)\rightarrow N_2(g)+H_2O(g)+105kcal$

This chemical reaction is an unbalanced reaction because in this reaction, the number of atoms of individual elements are not balanced.

In order to balanced the chemical reaction, the coefficient 2 is put before the $NH_3$ , the coefficient 3 is put before the $N_2O\text{ and }H_2O$ and the coefficient 4 is put before the $N_2$ .