Counting Atoms Practice

Front

What is the chemical formula for glucose?

Back

C6H12O6

Front

How many hydrogen atoms are in the compound C6H12O6?

Back

12

Front

What does the subscript in a chemical formula represent?

Back

The number of atoms of the element in the molecule.

Front

How many elements are in the compound C2H8O?

Back

3 (C, H, O)

Front

What is the chemical formula for water?

Back

H2O

Front

How many hydrogen atoms are in H2O?

Back

2

Front

What is the total number of atoms in the compound C3H5(NO3)3?

Back

20 (3 C, 5 H, 3 N, 9 O)

Front

What is the significance of parentheses in a chemical formula?

Back

They indicate that the atoms inside are grouped together and multiplied by the subscript outside.

Front

How many oxygen atoms are in the compound C3H5(NO3)3?

Back

9

Front

What is the total number of carbon atoms in C3H5(NO3)3?

Back

3