Formula

A diagram to a molecule is shown above. Based on the diagram, what is the identity of this compound?

• Water (H₂O)

• Hydronium (H₃O⁺)

• Hydrogen peroxide (H₂O₂)

• Hydroxide (OH^-)

Tags

NGSS.MS-PS1-1

Based on the diagram of molecule 5, what is the identity of the compound?

• Hydrogen peroxide (H₂O₂)

• Hydronium (H₃O⁺)

• Hydroxide (OH^-)

• Water (H₂O)

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are in the formula HOOCCOOH?

• 2

• 4

• 8

• 1

Tags

NGSS.MS-PS1-1

In the formula for calcium chloride, CaCl₂, there are ___ atoms of calcium in a formula unit.

• 1

• 2

• 3

• it cannot be determined by current science

Tags

NGSS.MS-PS1-1

In the formula for calcium chloride, CaCl₂, there are ___ atoms of chlorine in a formula unit.

• 1

• 2

• 3

• it is estimated in the billions, but we're not sure

Tags

NGSS.MS-PS1-1

The formula for sulfur trioxide is SO₃. There are ___ atoms of sulfur in a molecule.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

The formula for sulfur trioxide is SO₃. There are ___ atoms of oxygen in a molecule.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

In the formula for sodium sulfate, Na₂SO₄, there are ___ different elements present.

• 1

• 2

• 3

• 5

Tags

NGSS.MS-PS1-1

In the compound sodium sulfate, Na₂SO₄, there are ___ sodium atoms in a formula unit.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

In the compound sodium sulfate, Na₂SO₄, there are ___ sulfur atoms in a formula unit.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1