What type of reaction occurs when two hydrogen atoms collide at high speed combining together into a helium atom: alpha decay, beta decay, fission, or fusion?

fusion   when you fuse things you combine them.

Explanation:

the answer to your question is c

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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