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Is styrofoam a solid?
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Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
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Which of the following describes a situation where competition between producers exists
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Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate
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Is styrofoam a solid?...
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