Chemical activity of metals

Sodium is kept under kerosene surface .

• because it is highly reactive

• because its really soft

Unlike non-metals, most metals tend to —

• conduct electricity and heat well.
• be gases at room temperature.
• break easily when hammered.
• have less luster and shine.

Most metals are solid at room temperature

• False

• True

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Chemical or Physical:

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

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

Sodium and potassium are highly reactive .

• yes

• no

Chemical or Physical:

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

• Chemical

• Physical

Tags

NGSS.5-PS1-3

How does rust form?

• Through paint flaking off of a metal surface

• Through a chemical reaction between iron and oxygen

• Through weathering

• Through the physical mixing of iron and water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following metals will react the slowest with oxygen?

• Copper

• potassium

• sodium

Are metals good conductors?

• No

• Yes