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nata0808 [166]
3 years ago
11

What is a negatively charged subatomic particle?

Chemistry
1 answer:
zvonat [6]3 years ago
5 0
I think its electrons
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Reply ASAP: Why do electrons affect the structure of a molecule?
antoniya [11.8K]

Answer:

C. The electron clouds are negatively charged and repel each other as far apart as possible

Explanation:

This is the basis of VSEPR theory.

The angles between the electron clouds determine the shapes of the molecules.

B. and D. are wrong. All electron pairs are negatively charged.

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Calculate the heat change in calories for melting 65 g of ice at 0 ∘c.
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When ice melts, the physicals state changes from solid to liquid. The energy or the heat required (q) required to change a unit mass (m) of a substance from solid to liquid is known as the enthalpy or heat of fusion (ΔHf). The variables; q, m and ΔHf are related as:

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the heat of fusion of water at 0C = ΔHf = 334 J/g

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Now:

4.184 J = 1 cal

which implies that: 21710 J = 1 cal * 21710 J/4.184 J = 5188.8 cal

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