Counting Atoms Practice Test

Front

How many atoms of Hydrogen are in H2O?

Back

2

Front

What is the term for a substance made of two or more different elements chemically combined?

Back

Compound

Front

What does it mean if there is no subscript following an element symbol in a chemical formula?

Back

It means there is only 1 atom of that element.

Front

How many total atoms are in the compound C6H12O6?

Back

24

Front

What is the chemical formula for table salt?

Back

NaCl

Front

How many atoms of Oxygen are in the compound H2O?

Back

1

Front

What is the term for a pure substance that cannot be broken down into simpler substances?

Back

Element

Front

In the formula H2SO4, how many Sulfur atoms are present?

Back

1

Front

What is the total number of atoms in the compound Na2CO3?

Back

6

Front

How many atoms of each element are in the compound C2H5OH?

Back

C=2, H=6, O=1