Please help not trying to fail this year
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Chemistry, 21.06.2019 22:20
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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Chemistry, 21.06.2019 23:20
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night. when he took it out, its new volume was 322 milliliters, but its pressure was the same. if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is kelvins.
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Chemistry, 22.06.2019 08:30
How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?
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Chemistry, 22.06.2019 09:00
George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.
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History, 17.12.2020 22:30
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History, 17.12.2020 22:30