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LuckyWell [14K]
3 years ago
15

When heat energy is added, two changes are observed:

Chemistry
1 answer:
Semmy [17]3 years ago
6 0

Explanation:

A) melting, B) sublimation

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There are two types of covalent bonds: polar and nonpolar. Polar bond is a bond between two different nonmetal atoms of different electronegativities. While nonpolar bond is a bond between the same atom or two differenct atoms of the same electronegativities (if there is). Their electronegativities pull will cancel so that their overall polarity is zero.

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