What is the difference between a compound and a mixture?

question 19 options:

a mixture is a pure substance, but a compound is not.

a compound is a pure substance, but a mixture is not.

mixtures are chemically combined, but compounds are not.

you cannot separate mixtures, but you can separate compounds.

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Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.