Reading Chemical Formulas

How many molecules are present?

• 5

• 2

• 10

• 7

Tags

NGSS.MS-PS1-1

How many oxygen atoms are in this chemical formula?

• 7 oxygen atoms
• 4 oxygen atoms
• 3 oxygen atoms
• 1 oxygen atom

Tags

NGSS.MS-PS1-1

How many different elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many carbon atoms (C) are in a CO₂ molecule?

• 1
• 2
• 3
• 0

Tags

NGSS.MS-PS1-1

How many Oxygen atoms (O) are in a molecule of CO₂?

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

If there is no subscript, there is ______ atom(s) of that element.

• 0
• 2
• only 1
• 1 million

Tags

NGSS.MS-PS1-1

How many molecules are in 10MgCl₂?

• 10
• 2
• 30
• 13

Tags

NGSS.MS-PS1-1

In this image, what are the symbols in red are called the_______.

• Products
• Reactants
• Subscripts
• Coefficients

Tags

NGSS.MS-PS1-2

In this image, the symbols to the right of the arrow (in black) are called the_______.

• Products
• Reactants
• Subscripts
• Coefficients

Tags

NGSS.MS-PS1-2