Basic Chemistry

What is the molar mass of Cs₂SO₄ ?

• 361.9

• 361.8

• 313.9

• 180

Is baking a cake a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Burning wood

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the atomic number of this atom?

• 7

• 14

• 21

• none of the above

Tags

NGSS.MS-PS1-1

A characteristic of matter that can only be observed when matter is changed into a new kind of matter.

• Chemical property

• Physical property

Tags

NGSS.MS-PS1-2

The ability of matter to change when heated (like a new odor is smelled)

• Chemical property

• Physical property

Rusting or tarnishing describes matter undergoing a __________ change with gases in the air.

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Color, shape, texture, and luster are all examples of _______________ of matter.

• Chemical property

• Physical property

Mass, volume, or density of an object is a _______________ of that object.

• Chemical property

• Physical property

The ability to cook, burn, rust, tarnish, or explode is an example of a ___________ .

• Chemical property

• Physical property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5