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1) in a chemical reaction, if a color change is detected, if an odor change is detected, or if a precipitate is formed, then: a. a chemical reaction has definitely occurred b. only physical reactions have occurred c. a chemical reaction may have occurred d. both physical and chemical reactions have definitely occurred 2) if different products are not created during a process, then a chemical reaction has not occurred. a. true b. false
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The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100
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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
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Chemistry, 22.06.2019 22:30
How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso
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1) in a chemical reaction, if a color change is detected, if an odor change is detected, or if a pre...
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