Biology
Biology, 17.09.2019 17:40, jpsaad00

Which statement explains the boiling point of a substance?
a) the temperature at which substance changes from solid to liquid
b) the temperature at which a substance from gas to liquid
c) the temperature at which a substance changes from liquid to gay
d) the temperature at which a substance changes from gas to solid

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Heat being added or taken away from a substance may cause a change in chemical properties a change in state change in the boiling point change in the freezing point question 2 (multiple choice worth 2 points) “phase change” and “change of state” are opposites sometimes mean the same thing are unrelated are two terms for the same thing question 3 (multiple choice worth 2 points) which of the following statements about freezing points is true? the boiling point is the same for all substances the freezing point of a substance is higher than its boiling point the freezing point of a substance is lower than its boiling point the freezing point of a substance can be the same as the boiling point question 4 (multiple choice worth 2 points) a liquid may reach its boiling point if heat is added to it there are no gases in it its solid melts easily the temperature is low enough question 5 (multiple choice worth 2 points) when a liquid becomes a solid, this is called freezing point thermal point boiling point flash point question 6 (multiple choice worth 2 points) in condensation, a gas becomes a liquid. a gas becomes a solid. a solid becomes a gas. a liquid becomes a gas. question 7 (essay worth 3 points) explain how changes in temperature affect the particle motion of a substance.
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a) the temperature at which substa...

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