Chemistry, 22.07.2019 20:40 JoeyJo6704
Which of the following statements is true? a. some plants are considered abiotic components of an ecosystem. b. animals are always biotic components of an ecosystem. c. temperature range is always a biotic component of an ecosystem. d. in many ecosystems, water is considered a biotic component of the ecosystem.
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If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
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Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?
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Calculate the mass of 0.750 mol of the following substance. na3po4. , i'm not quite sure on how to set up the problem to solve! : (
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Chemistry, 23.06.2019 10:30
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?
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Which of the following statements is true? a. some plants are considered abiotic components of an e...
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