Which type of reaction tends to occur on its own, or spontaniously?
WILL VOTE BRAINLIEST

exothermic reaction?

Exothermic reactions

Explanation:

Exothermic reactions tend to be spontaneous because they release energy overall (the “ball” is rolling down the hill which releases energy). Both reactions have a small bump to overcome called the activation energy (the energy needed to get molecules moving fast enough to bump into each other and react).

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

gag reflex, poor dentition, gum retraction

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