Question

why nf3 is exothermic and ncl3 is endothermic

Answer 1

Explanation:

Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions. ... Compounds are represented by their chemical formula. For example, salt is represented by the formula NaCl.

Answer 2

Answer:

The larger difference in the size of N and Cl results in the weakness of strength of N-Cl bond. On the other hand, the difference in size of N and F is small; consequently, the N-F bond is quite strong. As a result, NF3 is an exothermic compound. 1.

Explanation:

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