There were three proposed hypotheses in the experiment: Application of a keratinase enzyme-based relaxer can be used to permanently reduce the curliness of human hair. Keratinase (an enzyme-based relaxer) is a better relaxer than lye. People should not relax their hair. Why was the first hypothesis tested, but the other two were not

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question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.