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Asolid substance turns into a liquid. which best describes this change?
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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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What is the subscript for oxygen in its molecular formula
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When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two
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Asolid substance turns into a liquid. which best describes this change?...
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