Counting Atoms: Optional

How many Hydrogen atoms are in 4 H₂O? ​ (a)   How many oxygen atoms? ​ (b)  

• 8
• 4
• 1
• 2
• 3
• 5
• 6
• 7
• 9

How many O's are in Al₂(SO₄)₃

How many Sulfur's are in Al₂(SO₄)₃

• 4

• 3

• 7

• 12

How many Nitrogen atoms are in the in H₃C₂ON₅?

• 2

• 3

• 4

• 5

How many atoms of Oxygen are in Fe(NO₃)₃ ?

• 6
• 3
• 9
• 1

What does the subscript in a chemical formula tell you?

• How many molecules are present

• How many atoms are present

• How many elements are present

• How many neutrons are present

• Iron, Oxygen

• Francium, Europium, Oxygen

• Ferrium, Oxygen

• Berylium, Oxygen

• Silver

• Gold

• Nitrogen

• Oxygen

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

• Coefficient

• Exponent

• Multiplier

• Subscript

How many Oxygen are in H₂O?

• 1
• 2
• 0
• 4