Physical Science Chapter 7a Chemical equations BJU 6th Ed

What are the reactants?

• N2 + 6H2

• 2NH3

• N

• H

What is the product?

• N2 + 6H2

• 2NH6

• N

• H

What is the "6" in front of H2 called?

• Superscript

• Subscript

• Exponent

• Coefficient

Is the reaction balanced?

• Yes

• No

How many Hydrogen atoms are needed to produce two molecules of NH6?

• 2

• 6

• 8

• 12

How many Nitrogen atoms are needed to produce two molecules of NH6?

• 1

• 2

• 4

• 6

How many Nitrogen *molecules* are needed to produce two molecules of NH6?

• 1

• 2

• 4

• 6

How many Hydrogen *molecules* are needed to produce two molecules of NH6?

• 1

• 2

• 4

• 6

When two liquids mix and a solid separates from that mixture, it is known as a

• Particle

• Composite

• Precipitate

• Compost

When a chemical reaction results in the release of gas in a liquid

• Odor

• Color Change

• Composition Change

• Bubbles