Can nonsmokers hold their breath longer than people who smoke? write the independent variable, the dependent variable, and the hypothesis.

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How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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.