Counting atoms

How many Hydrogen atoms are in 4H₂O?

• 6

• 8

• 2

• 4

How many Oxygen atoms are in H₂O?

• 1

• 2

• 0

• 4

How many Magnesium atoms are in 10MgCl₂?

• 10

• 5

• 20

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

How many atoms are there TOTAL in H₂SO₄ ?

• 6

• 5

• 7

• 3

How many Sodium atoms are in 6NaCl?

• 1

• 12

• 6

How many Nitrogen atoms are in (NH₄)₂CrO₄?

• 1

• 2

• 8

• 16

How many atoms of Hydrogen are in H₂O

• 1

• 2

• 3

• more than 3

Calculate the number of Oxygen atoms in Al(OH)₃

• 1

• 2

• 3

• 4

The ______ are numbers found on the lower right-hand side of an element symbol.

• Coefficient

• Exponent

• Multiplier

• Subscript