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Mixtures

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Sections
Mixtures	12 mins	0 completed	Learn Summary
Scientific Notation	6 mins	0 completed	Learn
Accuracy & Precision	5 mins	0 completed	Learn
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Metric Prefixes	17 mins	0 completed	Learn Summary
Significant Figures	18 mins	0 completed	Learn Summary
Energy, Heat and Temperature	7 mins	0 completed	Learn Summary
Physical & Chemical Changes	7 mins	0 completed	Learn Summary
Dimensional Analysis	28 mins	0 completed	Learn
Density	14 mins	0 completed	Learn Summary
End of Chapter 1 Problems	51 mins	0 completed	Learn

Additional Practice
Filtration
Types of Energy

Additional Guides
The Scientific Method
Physical & Chemical Properties

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Next SectionScientific Notation

Solution: Which of the following are mixtures? Check all that apply. (a) water (H₂O) (b) salt (NaCl) (c) salt water (d) air (mostly N₂ and O₂)

Solution: Which of the following are mixtures? Check all that apply. (a) water (H2O) (b) salt (NaCl) (c) salt water (d) air (mostly N2 and O2)

Problem

Which of the following are mixtures? Check all that apply.

(a) water (H₂O)

(b) salt (NaCl)

(d) air (mostly N₂ and O₂)

Solution

We’re being asked to identify the mixture/s among the given.

Recall that mixtures are combinations of two or more pure substances (elements or compounds).

Mixtures are not chemically combined.

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Mixtures

Solution: Which of the following are mixtures? Check all that apply. (a) water (H2O) (b) salt (NaCl) (c) salt water (d) air (mostly N2 and O2)

Solution: Which of the following are mixtures? Check all that apply. (a) water (H2O) (b) salt (NaCl) (c) salt water (d) air (mostly N2 and O2)

Practice Problems

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Solution: Which of the following are mixtures? Check all that apply. (a) water (H₂O) (b) salt (NaCl) (c) salt water (d) air (mostly N₂ and O₂)