8.5D - Chemical Formulas EASY

Which of the models best represents CaCO₃?

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How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 4

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

How many atoms of oxygen are in a molecule of glucose (C₆H₁₂O₆)?

• 4

• 6

• 12

• 24

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

• 1

• 2

• 6

• 7

This appears on the left side of a chemical formula, and represents how many molecules there are. 

• An Atom
• The Subscript
• A Molecule
• The Coefficient

How many hydrogen atoms are in this chemical formula:

• 4 hydrogen atoms

• 1 hydrogen atom

• 2 hydrogen atoms

• 3 hydrogen atoms

How many oxygen atoms are in this chemical formula?

• 6 oxygen atoms
• 2 oxygen atoms
• 3 oxygen atoms
• 4 oxygen atoms

What is the right part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation