Chemistry, 13.12.2021 20:00 mathbrain58
Which of the following quantities for an object should be known to calculate its density? (5 points) The space it occupies The heat present in it The force of gravity acting on the object How long it takes for an object to travel a certain distance
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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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The boiling point of liquids is very high what does it indicate
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What element has similar physical and chemical properties as boron.
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Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
Answers: 1
Which of the following quantities for an object should be known to calculate its density? (5 points)...
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