9 0 20 07.03
Draw a Potential Energy Diagram (PE) for the following reaction:
2C + 3H2 C2H6 + energy
After the PE diagram is drawn please indicate with a dotted line what would happen if a catalyst was
added to this reaction. This question is worth 2 points
x Clear
Undo
Redo
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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.