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Vanyuwa [196]
3 years ago
6

A solid substance turns directly into a gas. Which term describes this change?

Chemistry
2 answers:
igomit [66]3 years ago
8 0

Sublimation.

Since evaporation is liquid into gas, melting is solid into liquid and deposition is the geological process where sediments are added to land forms.

romanna [79]3 years ago
6 0

Answer:

sublimation

Explanation:

i just did on edgen :)

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Using the VSEPR theory , what would the representation mean A central atom with 2 connected atoms atom with I lone pair of Jone
VLD [36.1K]

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The molecule has a bent geometry

Explanation:

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The molecule described in the question has the form AEX2. Two substituents and one lone pair form three electron domains around the central atom. The expected geometry is trigonal planar but the observed molecular geometry is bent because of the lone pairs present.

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3 years ago
Report the number 315.05 to 3 significant figures.
emmainna [20.7K]

Answer:

315.

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Hello.

In this case, since the given number has five significant figures as the zero is to the right of the first nonzero digit (3), if it is required to report it with three significant figures, it is necessary to "cut" it at the first five without any rounding since the subsequent zero is less than five.

Thus the number turns out:

315

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