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Which of the following elements is one of the major components of living organisms? a sulfur b carbon c copper d silicon
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Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.
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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
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Which of the following elements is one of the major components of living organisms? a sulfur b carb...
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