Chemical Equations

Identify the Reactants in this equation.

• A

• B

What state of matter is this substance?

• solid

• liquid

• gas

• aqueous

Identify the number in blue.

• Product

• Reactant

• Coefficient

• Subscript

In what state is this substance?

• solid precipitate

• dissolved in water

• released as a gas

• liquid

If 28 g of oxygen reacts with 14 g of hydrogen, how much water is produced?

• 12

• 28

• 14

• 42

What are the blue numbers called?

• oxidation numbers

• subscripts

• group numbers

• product numbers

How many atoms of nitrogen are present in this molecule?

• 1

• 2

• 3

• 4

Which compound is formed as a solid precipitate in this reaction?

• Pb(NO₃)₂

• KI

• PbI₂

• KNO₃

What does the symbol inside the circle mean?

• "yields, or produces"

• "dissolved in water"

• "forms a precipitate"

• "released as a gas"

Is the compound in the pink box a Reactant or a Product?

• Reactant

• Product