Question

law of conservation of matter quick check
suppose 10 atoms of carbon (c) react with 20 atoms of oxygen (o) to form 10 molecules of carbon dioxide (co₂). according to the law of conservation of matter, how many atoms are present in this reaction? (1 point)
30
10
20
15

Explanation:

Step1: Calculate the total number of atoms in reactants

The number of carbon atoms is \(10\), and the number of oxygen atoms is \(20\). The total number of atoms in reactants is \(10 + 20=30\).

Step2: Apply the law of conservation of matter

According to the law of conservation of matter, the total number of atoms in reactants is equal to the total number of atoms in products.

Answer:

30