Mixtures and Compounds

1 A substance made up of two or more chemically combinedelements is —

• an element

• mixture

• compound

• solution

Two or more physically combined substances form —

• a compoud

• an acid

• an element

• a mixture

What is an example of a mixture?

• Table salt

• Salt water

• Oxygen

• Air

Two or more substances in the same place but NOT chemically combined or in a specific ratio is called —

• compound 

• pure substance

• element

• mixture

In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

• I

• II

• III

• IV

Beatriz wants to make a mixture out of her bowl of blueberries. Which of the following would turn her bowl of blueberries into a mixture?

• adding more blueberries to the bowl

• adding raspberries to the bowl

• cutting up the blueberries

• mashing the blueberries

This diagram represents a _____.

• pure substance that is a compound

• mixture of elements

• pure substance that is an element

• mixture of compounds

Tags

NGSS.MS-PS1-1

• Element
• Compound
• Mixture of compound and element
• Mixture of two elements

Tags

NGSS.MS-PS1-1

Which of these substances is an example of a solution?

• milk

• sweet tea

• mercury

• concrete

Steven noticed that one of the ingredients contained in his fruit-flavored snack was “artificial flavors.” One chemical used for that purpose is isopropyl acetate (CH₃COOC₃H₇). How many carbon atoms are present in one molecule of isopropyl acetate, CH₃COOC₃H₇?

• 1

• 2

• 5

• 6

Tags

NGSS.MS-PS1-1