Equations Pre Test

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

• Yields
• Reactants
• Products
• Precipitates

In the equation shown, what are the reactant(s)?

• N₂ + H₂

• NH₃

In the equation shown, what are the product(s)?

• N₂ + H₂

• NH₃

How many Nitrogen (N) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

How many Hydrogen (H) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

How many Hydrogen (H) atoms are in NH₃O5

• 3
• 4
• 5
• 1

How many Oxygen (O) atoms are in 2C₂HO₈C_l2

• 2
• 16
• 8
• 5

Name the part in red:

_2_H₂ + _1_O₂ -> _2_H₂O

• Coefficient
• Product
• Yield
• Subscript

Is this equation balanced?

• Yes

• No

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.