Chemical Reactions Quiz Review

A solid that settles out of a solution when a chemical reaction occurs is called a(n) _____.

• product
• precipitate
• reactant
• salt

Tags

NGSS.MS-PS1-2

When water freezes, it changes to ice. Is this a chemical reaction?

• Yes
• No

Which of the following is NOT a sign of a chemical reaction

• change in temperature
• change in color
• change in odor
• change in location

Tags

NGSS.MS-PS1-2

• element
• solution
• compound
• atom

Tags

NGSS.MS-PS1-1

Choose the chemical formula for this molecule

• CH4
• CO2
• CO
• C2O

Tags

NGSS.MS-PS1-1

Ozone (O3) is an example of a(n) _________

• atom
• compound
• molecule
• compound and molecule

Tags

NGSS.MS-PS1-1

• a. carbon
• b. hydrogen
• c. nitrogen
• d. oxygen

Tags

NGSS.MS-PS1-1

When magnesium ribbon is placed in hydrochloric acid, magnesium chloride will be formed and hydrogen gas is given off. There will be a change in temperature of the test tube, slight fizzing of gas bubbles,then the magnesium ribbon will dissolve into water. What type of change is being shown?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The marshmallows float in the hot chocolate pictured below, are the marshmallows more or less dense than the hot chocolate?

• More dense
• Less dense

What words describes the process for letter "C"

• Sublimation
• Melting
• Freezing

Tags

NGSS.MS-PS1-4