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3 years ago

8

What two elements comprise most of a nebula? question 5 options: hydrogen and helium hydrogen and nitrogen oxygen and hydrogen c

arbon and hydrogen helium and lithium?

2 answers:

OleMash [197]3 years ago

5 0

hydrogen and helium and the most abundant elements in a nebula.

nlexa [21]3 years ago

3 0

Hydrogen and helium took the test was correct!

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Consider the second-order reaction:

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Answer:

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Explanation:

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Rate constant of the reaction = k = $6.4\times 10^{-9} L/mol s$

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$\frac{1}{[A]}=6.4\times 10^{-9} L/mol s\times 4.53\times 10^{10} s+\frac{1}{[5 mol/L]}$

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