Which two types of matter are pure substances?

• homogenous mixtures and elements 
• solutions and compounds
• elements and compounds
• mixtures and elements

Tags

NGSS.MS-PS1-1

Unlike an element, a(n) ________ may be separated through a physical process like filtration.

• mixture
• compound
• atom
• molecule

Mixtures that have the same composition throughout are ________.

• heterogenous
• homogenous
• pure substances
• elements

Which of the following describes a heterogeneous mixture?

• carbon monoxide (CO)
• sand
• sulfur
• milk

To form brass, copper and zinc combine but do not chemically bond. Brass is a(n)________.

• atom
• element
• compound
• mixture

Sulfur dioxide is a smelly, toxic gas. It is made of the elements sulfur and oxygen and cannot be physically separated. Sulfur dioxide is represented by the chemical formula SO . Sulfur dioxide is a(n) ________.

• element
• compound
• heterogeneous mixture
• solution

Tags

NGSS.MS-PS1-1

Beryllium appears on the periodic table with the symbol Be. It may bond with sulfurto form the compound BeS. Beryllium is a(n) ________.

• element
• compound
• heterogeneous mixture
• solution

Tags

NGSS.MS-PS1-1

Cracker jacks contain peanuts and popcorn. Eve hates peanuts, so she picks out the popcorn and leaves the peanuts in the bowl. Based on this description, cracker jacks are a(n) ________.

• atom
• element
• compound
• mixture

In the lab, Mr. Little is using a substance that has the same composition throughout. He separates the substance into a liquid and solid using a physical process. Based on this description, Mr. Little's substance is a(n) ________.

• element
• compound
• solution
• heterogeneous mixture

Lemonade contains lemon juice and sugar dissolved in water. What is the solvent in lemonade?

• water
• lemon juice
• sugar
• There is no solvent in lemonade