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ser-zykov [4K]
2 years ago
9

Which of the following is visible to o a person only because light from another source reflects that off of it?

Chemistry
1 answer:
strojnjashka [21]2 years ago
5 0

Answer:

Clouds

Explanation:

The cloud among the given options would be visible only when the light from a different source reflects outside it. This is due to the reason as we are able to see the clouds only when the sun reflects it's light on it and we can witness it by not seeing the clouds in the sky on a shady day. Thus, <u>option D</u> is the correct answer. Sun cannot be the one as the sun itself can produce its own light and thus, a source of light. The lightning is characterized as a 'flash of light' and the flashlight also produces light.

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What are the similarities and differences between ionic and covalent bonds?
ohaa [14]

Answer:

Explanation:

Similarities.

Both Ionic and covalents bond produce exothermic reactions.

They are both neutral.in Ionic bonds, the two opposite charge will terminate each other and in covalent, the neutral molecules tend to share electrons.

Difference

Ionic bonds have high polarity while covalent have low.

Ionic bonds have no definite shape, covalent have.

Ionic have high melting points, covalent have low.

Io ic have high boiling point, covalents have low.

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sodium chloride  ---- NaCl

magnesium chloride ---MgCl_2

calcium oxide ---- CaO

lithium phosphide----Li_3P

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Answer:

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