Matter Quiz Review

How many hydrogen atoms are there?

• 1

• 4

• 5

• 6

How many nitrogen atoms are there?

• 4

• 8

• 10

• 20

How many oxygen atoms are there?

• 3

• 6

• 8

• 16

How many atoms are there total?

• 0

• 1

• 4

• 6

How many Sodium (Na) are in 6NaCl?

• 1
• 12
• 6

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Which of the following reactions is balanced?

• 2CH₄ + O₂ -> CO₂ + H₂O
• CH₄ + 2O₂ -> CO₂ + H₂O
• CH₄ + 2O₂ -> CO₂ + 2H₂O
• None of the chemical equations are balanced.

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

The substances listed on the left side of a chemical equation are the

• Products
• Coefficients
• Precipitates
• Reactants

In chemical reactions, what does the principle of conservation of mass mean?

• Matter is not created or destroyed.
• The total mass of the reactants is greater than the total mass of the products.
• The total mass of the reactants is less than the total mass of the products.
• Matter is not changed.