Which of the following is a chemical property of the iron nail? a. the iron nail melts at 1,538°c. b. the iron nail bends when heated to a high temperature. c. the iron nail rusts when it comes into contact with oxygen and water. d. the iron nail has a density of 7.87 grams per cubic centimeter.

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

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