Chemical Properties and Changes

Chemical Properties and Changes

Physical Vs. Chemical

Multiple Choice

Characteristics that can be observed or measured; for example, color, melting point, and conductivity

• conductivity

• hardness

• physical change

• physical properties

Multiple Choice

A physical property that describes the ability to transfer heat or electrical energy

• conductivity

• hardness

• physical change

• physical properties

Multiple Choice

The measurement of the ability of a solid to dissolve in a liquid

• conductivity

• hardness

• physical change

• solubility

Multiple Choice

Which of the following statements is true about the arrangement of particles in matter?

• The particles in a gas are closer together than the particles in a liquid.

• The particles in a liquid are spread farther apart than the particles in a gas.

• The particles in a gas are spread farther apart than the particles in a solid.

• The particles in a solid are spread farther apart than the particles in a liquid.

Multiple Choice

Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.

• Chemical then Physical

• Physical then Chemical

• Both Physical

• Both Chemical

Multiple Choice

Which of the following is evidence of a physical change?

• New substance

• Shape Change

• Light produced

• Gas released.

Multiple Choice

Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.

• Chemical Change

• Physical Change

Multiple Choice

A physical change is

• a change where the characteristics do not change the substance

• a change where the characteristics do change the substance

• a change where the chemistry changes

Multiple Choice

Which of the following examples represents a physical change?

Multiple Choice

What is the definition of chemical change?

• any change that results in the formation of one (or more) new chemical substance(s).

• changing of only the appearance of the object

• matter cannot be created or destroyed, only change form

• changes affecting the form of a chemical substance, but not its chemical composition.

Multiple Select

Choose every image that represents a chemical change.

Multiple Choice

Which of the following IS a clue that a chemical change has occurred?

• State of matter change

• Size Change

• Change in temperature

• Shape change

Multiple Choice

Is Gatorade powder dissolving in water physical or chemical change?

• Physical

• Chemical