Chemistry, 12.05.2021 17:20 NathanaelLopez
3H2 (g) + N2 (g) -> 2NH3 (g) Using the equation above, how many GRAMS of H2 are needed to produce 479.8 GRAMS of NH3?
Answers: 2
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Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
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Chemistry, 22.06.2019 08:30, Blaise2653
Joan writes four numbers on the board in standard form, and then she writes their scientific notation
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Chemistry, 22.06.2019 12:30, hayleyconsole
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
3H2 (g) + N2 (g) -> 2NH3 (g)
Using the equation above, how many GRAMS of H2 are needed to produc...
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