Chemistry, 16.10.2019 18:00, liyahheadhigh
At constant pressure, which of these systems do work on the surroundings? check all that apply.
a(s) + 2b(g) = c(g)
a(s) + b(s) = c(g)
a(g) + b(g) = c(g)
a(g) + b(g) = 3c(g)
Answers: 1
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
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What type of reaction fuels the processes seen here?
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Chemistry, 23.06.2019 07:30, sweetLips230
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Chemistry, 23.06.2019 12:30, 1Angel2Got3Brains
Is the genie in the bottle experiment a physical or chemical change/reaction?
Answers: 1
At constant pressure, which of these systems do work on the surroundings? check all that apply.
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