Elements, Compounds and Mixtures Test

True or False: elements AND compounds are pure substances.

• True

• False

An element is made up of only one kind of _____.

• isotope
• plastic
• atom
• metal

A pure substance made of only one kind of atom.

• mixture

• compound

• atom

• element

Compounds are different than elements because compounds are -

• A combination of two or more elements.
• not able to be broken down into parts.

• made from the same type of atoms.

• a pure substance, elements are not.

Can compounds be found in the periodic table?

• Yes
• No

A compound consists of two or more elements bound together.

• True
• False

Tags

NGSS.MS-PS1-1

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

Is salt (NaCI) a compound or a element

• Compound
• element

Tags

NGSS.MS-PS1-1

Nickel has the chemical symbol Ni and atomic number 28. It is a silvery-white metal and cannot be broken down physically or chemically into a more simple substance. Nickel is a ___________________ .

• element

• compound

Ammonia is a colorless gas with the formula NH3. Ammonia contains hydrogen and nitrogen and cannot be broken down physically. Ammonia is a ___________________ .

• element

• compound

Tags

NGSS.MS-PS1-1