Question 12 of 40 The number of H+ ions present in 500ml of 0.5M H2SO4 solution is A) 1.2 x 10^23
B) 6.023x 10^22
C) 1.2x 10^22
D) 6.023 x 10^23
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Fred is studying a substance that is made out of only one element. this means that

How do you interpret a chromagram for what mixtures contain?

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.