Counting Atoms in Compounds

Front

What are the elements present in NaOH?

Back

Na, O, H

Front

In the compound 2 NaOH, how many sodium atoms are present?

Back

2

Front

In the compound MgCl2, how many chlorine atoms are present?

Back

2

Front

In the compound 4 HNO3, how many nitrogen atoms are present?

Back

4

Front

Fill in the blank: In the compound 4 Li2O, there are ___ lithium atoms.

Back

8

Front

What does the subscript in a chemical formula represent?

Back

The number of atoms of the element in one molecule of the compound.

Front

What is the total number of atoms in the compound 3 H2O?

Back

6 (3 H and 3 O)

Front

How many oxygen atoms are in the compound 5 Ca(OH)2?

Back

10 (5 x 2 = 10)

Front

What is the formula for calculating the total number of atoms in a compound?

Back

Add the number of atoms of each element, considering their subscripts.

Front

In the compound C6H12O6, how many carbon atoms are present?

Back

6