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5. Which of the following can be classified as a mixture ?
A. Table salt
B.air
C.nitrogen
D.gold

6. Which of the following is a heterogeneous mixture?
A. Salt water
B. Beef stew
C. Steel
D.air

7. Which of the following is true about compounds ?
A. They can be chemically separated into their component elements
B. They have compositions that vary.
C. They can be homogeneous or heterogeneous.
D.they have have properties similar to those of their component

Respuesta :

thelandryoliver

5. B air is a mixture of many elements, but is not a chemically fused.


6. B Beef stew, composition varies throughout.


7. A. They can be chemically separated into their component elements, but they are all homogenous, and as such, have constant composition, which differs from the components properties, as the components must undergo a chemical change to become compounds.

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