2 years ago

As atoms get smaller,valance electrons are getting closer or farther away?

Chemistry

2 answers:

lutik1710 [3]2 years ago

8 0

Answer:

valence electrons get closer but rest of them are remain same

Fed [463]2 years ago

7 0

They are getting closer and the force of attraction is getting weaker

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Does liquid evaporate with adding heat or losing it

Marysya12 [62]

Adding because evaporation speed is increased with increased temperature

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2 years ago

How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane

FrozenT [24]

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2 years ago

5) Calculate the molality of 0.210 mol of KBr dissolved in 0.075kg pure water?

Margaret [11]

Answer:

$\boxed {\boxed {\sf 2.8 \ m }}$

Explanation:

The formula for molality is:

$m=\frac{moles \ of \ solute}{kg \ of \ solvent}$

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$moles= 0.210 \ mol \\kilograms = 0.075 \ kg$

Substitute the values into the formula.

$m= \frac{ 0.210 \ mol }{0.075 \ kg}$

Divide.

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2 years ago

Argon-40 undergoes positron emission as shown:

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Explanation:

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3 years ago

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