We’re being asked to identify which of the given is/are mixture(s).
Recall that mixtures are combinations of two or more pure substances (elements or compounds).
Mixtures are not chemically combined.
Mixtures can either be:
• Homogeneous: the components are evenly distributed and indistinguishable from each other
• Heterogenous: the components are not evenly distributed and distinguishable from each other
Which of the following are mixtures? Check all that apply.
a) salt water
b) water (H2O)
c) salt (NaCl)
d) air (mostly N2 and O2)
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Classification of Matter concept. You can view video lessons to learn Classification of Matter. Or if you need more Classification of Matter practice, you can also practice Classification of Matter practice problems.