Compounds

Is water an element or a compound?

• Element
• Compound

Tags

NGSS.MS-PS1-1

The properties of the elements that make up a compound are usually very similar to the compound itself.

• True
• False

Water (H₂O) freezing is an example of:

• A chemical change
• A physical change

Tags

NGSS.MS-PS1-4

A compound consists of two or more elements bound together.

• True
• False

Tags

NGSS.MS-PS1-1

Is Iron (Fe) an element or a compound?

• Element
• Compound

A chemical change always results in the formation of a:

• explosion
• big mess
• new substance
• new state of matter

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

How many elements are in HHe

• 3
• 4
• 2
• 5

Tags

NGSS.MS-PS1-1

What does the element AI stand for ?

• Gold
• Actinium
• Iron
• Aluminum

Is salt (NaCI) a compound or a element

• Compound
• element

Tags

NGSS.MS-PS1-1

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1