Main sequence stars are responsible for the formation of many elements. Which of the following best describes the process that forms these elements ?
A
Energy is consumed to break heavy elements into hydrogen and helium
Reactive molecules combine with oxygen in a combushin reaction.
B.
CO
Fusion causes isotopes of hydrogen to combine into helium, releasing energy and neutrons
D.
Subatomic particles are drawn together by gravity, producing radioactive decay.
Answers: 2
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
Chemistry, 22.06.2019 17:40
Areaction in which products can react to re-form reactants is
Answers: 1
Main sequence stars are responsible for the formation of many elements. Which of the following best...
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