Chemical Equations

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

• Yields
• Reactants
• Products
• Precipitates

CaCO₃ represents a chemical

• Symbol
• Formula
• Subscript
• Reaction

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.
  

How many Oxygen (O) atoms are in 2C₂HO₈C_l2

• 2
• 16
• 8
• 5

How many Hydrogen (H) atoms are in NH₃O5

• 3
• 4
• 5
• 1

A molecule is________

• a glob of gelatinous goo
• smaller than an atom
• filled with raisons
• more than one atom bonded together

How many molecules of Carbon are in the following formula? 3C₂H₆

• 3
• 6
• 12
• 18

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

In the following equation, what are the reactants?
CaO + 3 C → CaC₂ + CO

• CaO + 3 C
• CaC₂ + CO
• 3 C → CaC₂
• the stuff on the outside