I need help with my chemistry​

Explanation:

In a chemical reaction, there are reactants and products.

The reactants are the substances at the beginning of the reaction. They go into the reaction and are changed.

The products are the substances created in the reaction and what you end up with after the reaction.

In an equation, the reactants are to the left of the arrow and the products are to the right.

Let's look at the equation given:

FeO and Cl₂ start the reaction and are to the left of the arrow, so they must be the reactants.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

the answer is a and have a great day