Formula

The formula for caffeine is C₈H₁₀N₄O₂. There are ___ hydrogen atoms in a molecule.

• 4

• 8

• 2

• 10

Tags

NGSS.MS-PS1-1

The formula for caffeine is C₈H₁₀N₄O₂. There are ___ nitrogen atoms in a molecule.

• 4

• 8

• 2

• 10

Tags

NGSS.MS-PS1-1

The formula for caffeine is C₈H₁₀N₄O₂. There are ___ oxygen atoms in a molecule.

• 4

• 8

• 2

• 10

Tags

NGSS.MS-PS1-1

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

• 4

• 5

• 6

• 7

Tags

NGSS.MS-PS1-1

The formula for caffeine is C₈H₁₀N₄O₂. There are ___ different elements in a molecule.

• 4

• 8

• 24

• 640

Tags

NGSS.MS-PS1-1

Which of these formulas contain equal numbers of nitrogen atoms?

• Formulas I and III

• Formulas I and IV

• Formulas I, II and V

• Formulas II and III

Tags

NGSS.MS-PS1-1

What combination of beads should the use to model the formula? Blue represents carbon, green represent oxygen and red represent hydrogen.

• 6 blue, 6 red and 6 green

• 12 green, 6 red and 6 blue

• 12 red, 6 blue and 6 green

• 12 blue, 6 green and 6 red

Tags

NGSS.MS-PS1-1

How many elements are represented in the products in the equation?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The chemical formula for sodium sulfate is Na₂SO₄. How many sulfur atoms are in the formula for sodium sulfate?

• 1

• 2

• 6

• 7

Tags

NGSS.MS-PS1-1

How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1