1501 Exam 2 Review

What phase represents an object having a definite volume and indefinite shape

• Solid

• Liquid

• Gas

The amount of energy needed to change a substance from a solid to a liquid and vice versa is referred to as the substances

• heat of fusion

• heat of vaporization

Tags

NGSS.MS-PS1-4

Is breaking an egg a chemical or physical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

Is chopping wood a chemical or physical change?

• chemical

• physical

Is digestion a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-LS1-7

Is fireworks exploding a physical or chemical change?

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical change is irreversible

• True

• False

Which is the correct way to write this formula NaBr

• Sodium Bromide

• Sodium Bromine

• Bromide Sodium

• Bromine Sodium

There are more positive polyatomic ions than negative ones

• True

• False

The phase in which atoms and molecules no longer move is the

• solid phase

• liquid phase

• gas phase

• none of these

Tags

NGSS.MS-PS1-4