Question

Zoe is investigating the composition of substance A, an unknown substance. Using chemical processes, she analyzes substance A and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. What is substance A?

Answer 1

Answer:

The substance is  NaOH

Explanation:

To find the number of atoms of each element we multiply coefficient and the subscript  

For example $5 Ca_1 Cl_2$ contains  

5 × 1 = 5,Ca atoms and

5 × 2 = 10, Cl atoms  

Sodium hydroxide is NaOH which contains

1, Na atom and

1, O atom and

1, H atom  

Hence the ratio is 1 : 1 : 1