2nd Quarter EQT Review

Water is often called the universal solvent

• True

• False

A solution is a homogeneous mixture

• True

• False

A student was experimenting with mixing chemicals. Which of the following is evidence that a chemical change occurred, but not a physical change?

• a change in color

• change in volume

• bubbles formed and gas was released

• a change in state from liquid to a solid

There are two mixtures in a bowl of Jello with whip cream on top. Both mixtures are considered to be what type of mixtures?

• Solutions

• Colloids

• Suspensions

• Solvents

Matter must gain or lose energy in order to undergo a phase change.

• True

• False

Which of the following would most likely occur during a chemical reaction?

• Flames

• Steam

• Evaporation

• Melting

In an exothermic reaction, heat is given out.

• True

• False

In a chemical reaction is endothermic, the temperature decreases.

• True

• False

Two or more substances that are physically blended but are not chemically bonded are called _______.

• Mixtures

• Solvents

• Indicators

• Concentrations

Which of the following is a pure substance?

• Soda

• Granite

• Trail mix

• Gold