Chemistry Unit 2 Review

The atom is the building block of matter.

• true

• false

Tags

NGSS.MS-PS1-1

A compound is

• anything that takes up space

• a substance made up of atoms of only one kind

• two or more different elements in exact proportion

Tags

NGSS.MS-PS1-1

An element is

• anything that takes up space

• a substance made up of atoms of only one kind

• two or more different elements in exact proportion

Tags

NGSS.MS-PS1-1

This is an example of a _______ change. (melting chocolate)

• physical

• chemical

Tags

NGSS.MS-PS1-4

This is an example of a ________ change. (baking cookies)

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

This is an example of a _________ change.

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical change does not have to do with phase changes (States of Matter Changes).

• true

• false

Tags

NGSS.MS-PS1-4

A new substance is formed in a physical change.

• true

• false

Which of the following are examples of chemical properties (more than one)

• combusts

• reacts with water and oxygen

• ductile

• is weighed in grams

• flammability

Tags

NGSS.MS-PS1-2

Cutting your hair is an example of a ___________ change.

• physical

• chemical