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How many electrons does the 2nd main energy level hold when it is full?
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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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How many electrons does the 2nd main energy level hold when it is full?...
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