Counting atoms quizizz

How many Oxygen are in H₂O?

• 1
• 2
• 0
• 4

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

How many Magnesium are in 10MgCl₂?

• 10
• 5
• 20

How many O's are in Al₂(SO₄)₃

• 4
• 12
• 7
• 24

Number of H in 3(NH₄)₂CrO₄

• 4
• 2
• 8
• 24

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

• element symbol; atoms
• atom; element symbol
• subscript; protons
• compound; elements

• Iron, Oxygen

• Francium, Europium, Oxygen

• Ferrium, Oxygen

• Berylium, Oxygen

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

• Coefficient

• Exponent

• Multiplier

• Subscript

Coefficients in chemical formulas...

• are found at the beginning of a formula and multiply just the first atom

• are found at the end of a formula and multiply EVERYTHING!

• are found at the end of a formula and multiply only elements inside the parentheses.

• are found at the beginning of a formula and multiply EVERYTHING!