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During a chemical reaction, the mass of the compounds before the reaction the mass of the compounds after the reaction. is equal to, is greater than, is less than, has no affect on
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Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes
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The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.
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During a chemical reaction, the mass of the compounds before the reaction the mass of the compounds...
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