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2 years ago

Hello can anyone help?

Chemistry

2 answers:

e-lub [12.9K]2 years ago

8 0

Answer:

A ) 1, 2 and 3

Explanation:

1 ) is correct because,

K donates 1 electron

F gain 1 electron from K.

If donating and gaining of electrons takes place between two electron, then type of compound formed is ionic.

2 ) is correct because,

K + F -----> KF

3 ) is correct because,

KF is soluble in cold water; very soluble in hot water.

Andre45 [30]2 years ago

6 0

Answer:

A ) 1, 2 and 3

1 ) is correct because,

K donates 1 electron

F gain 1 electron from K.

If donating and gaining of electrons takes place between two electron, then type of compound formed is ionic.

2 ) is correct because,

K + F -----> KF

3 ) is correct because,

KF is soluble in cold water; very soluble in hot water.

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Answer:

2.6 ×10^-42

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From

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ln K= -237.2×10^3/2477.572

K = 2.6 ×10^-42

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A graduated cylinder was filled to 20.3 mL with water. A solid object weighing 73.05 g was immersed in the water, raising the me

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The density of the solid object will be 2.63 g/mL

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2 years ago

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3 years ago

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3 years ago