a calorimeter is a device used to measure how much heat energy is taken in or given off in a reaction. suppose after five trials of a chemical reaction, 100 kj of heat was produced on average.
what conclusion can be made about the reaction?
a. it is endothermic.
b. it releases heat energy.
c. it is a combustion reaction.
d. it creates more than one product.

B

Explanation:

since heat was produced...its an exothermic reaction

we don't have a proof for conclude this is a combustion..also we dont have enough information to identify products...

Therefore My only conclusion is B

If you understand my answer.mark me as brainliest...If not...Mark me as BrAiNlEss...☺️

answer; /// i do believe that the correct answer is (a) boiling

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms