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uranmaximum [27]
2 years ago
9

If you make a solution using 1.0 mol KBr in 1.0 kg water, how will the vapor pressure of this solution compare to the vapor pres

sure of a solution made from 1.0 mol sucrose in 1.0 kg water?
a) it will be half as large
b) it will be the same
c) it will be twice as large
d) it will be four times as large
Chemistry
2 answers:
____ [38]2 years ago
5 0

Answer:

it will be twice as large

Gennadij [26K]2 years ago
5 0

Answer: a. it will be half as large

Explanation:

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Answer:

8 electrons

Explanation:

Magnesium is present on group 2.

It has 2 valence electrons.

Electronic configuration of magnesium:

Mg₁₂ = 1s² 2s² 2p⁶ 3s²

1st energy level contain 2 electrons.(1s²)

2nd energy  level contain 8 electrons. (2s² 2p⁶)

3rd energy level contain 2 electrons. (3s²)

3rs energy level of magnesium is called valence shell. It contain two valance electrons. Magnesium can easily donate its two valance electrons and get stable electronic configuration.

It react with halogens and form salt. For example,

Mg + Cl₂   →   MgCl₂

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3 years ago
Please help me thanks so much??!!.:;))..I will mark you:))
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