Chemistry, 30.04.2021 20:00 HottheadAnthony7234
The half-live of americium-241 is 432 y. If 0.0002 g of americium-241 is present in a smoke detector at the date of manufacture, what mass of americium-241 is present after 100.0 y?
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Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin
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How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
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Chemistry, 22.06.2019 16:50
What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume
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Chemistry, 22.06.2019 18:30
Which of the following words describe the reality that the universe looks the same from various perspective
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The half-live of americium-241 is 432 y. If 0.0002 g of americium-241 is present in a smoke detector...
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