Unit 1 Chemistry Pre-Test

Which is an accurate model of CH4?

• Model #1

• Model #2

• Model #3

• Model #4

If a substance changes color or smell, it is most likely due to a PHYSICAL change.

• True

• False

Tags

NGSS.MS-PS1-2

If a substance changes its state of matter, it is going through a CHEMICAL change

• True

• False

During a chemical reaction, all matter is conserved.

• True

• False

Tags

NGSS.MS-PS1-5

What is modeled in the picture?

• An element

• A compound

• A mixture of a compound and element

• A mixture of two elements

The solution below is...

• An Element

• A compound

• A mixture of element and element molecules

• A mixture of two elements

The solution below is...

• An element

• A compound

• A mixture of a compound and a element

• A mixture of two compounds

Tags

NGSS.MS-PS1-1

The solution below is...

• An element

• A compound

• A mixture of a compound and a element

• A mixture of two compounds

Tags

NGSS.MS-PS1-1

The solution below is...

• An element

• A compound

• A mixture of a compound and a element molecule

• A mixture of two compounds

The solution below is...

• An element molecule

• A compound

• A mixture of a compound and a element

• A mixture of two elements