Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with the following variables in her experiment:
dependent variable: Air humidity, Air Temperature or Amount of metal corrosion
independent variable: Airborne salt concentrations, Volume of ocean water or ocean water temperature
one possible confounding variable: Air temperature, Airborne salt concentrations or color of nearby ocean waters
Answers: 2
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16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
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When the mercury level in a barometer decreases that atmospheric pressure has
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Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the...
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