Question

if a reaction starts with 4 cu atoms, 5 o atoms, and 10 h atoms, what is known about the products?
a. the products will contain 19 atoms of unknown type.
b. the products will contain 4 cu atoms, 5 o atoms, and 10 h atoms.
c. the products will contain no oxygen because it is a gas.
d. the products will contain 4 cu atoms and 5 h₂o molecules.

Explanation:

Step1: Recall law of conservation of mass

In a chemical reaction, atoms are neither created nor destroyed. The number and type of atoms present in the reactants must be the same as those in the products.

Answer:

B. The products will contain 4 Cu atoms, 5 O atoms, and 10 H atoms.