Chemistry, 25.08.2019 09:20 disneyshree9427
Acube of limestone is slower to react in a beaker of acetic acid than the same amount of limestone in powder form. which is the best reason that the cube takes longer to react? . a. it is under greater pressure, which requires more energy to break bonds.. b. it is more concentrated, which causes fewer collisions of reactant molecules.. c. it has less surface area, which causes fewer collisions of reactant molecules. d. it has reactants with higher activation energies so it takes longer to break bonds.
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Chemistry, 21.06.2019 22:30
Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial
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Chemistry, 22.06.2019 14:00
Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules
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Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
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Chemistry, 22.06.2019 18:50
Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.
Answers: 1
Acube of limestone is slower to react in a beaker of acetic acid than the same amount of limestone i...
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