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3 0

Answer:The frozen balloon shrank because the average kinetic energy of the gas molecules in a balloon decreases when the temperature decreases.

Explanation: hope this will help

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An ion that consists of 7 protons, 6 neutrons, and 10 electrons has a net charge of(I ) 4- (3) 3+(2) 3- (4) 4+

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Answer : The correct option is 2.

Explanation :

Number of protons = 7

Number of neutrons = 6

Number of electrons = 10

Protons are those which carries positive charge.

Electrons are those which carries negative charge.

Neutrons are those which do not carry any charge that means neutrons are neutral.

The net charge on an ion = Number of protons present in an ion + Number of electrons present in an ion

The net charge on an ion = (+7) + (-10) = -3

Therefore, the net charge on an ion is (-3).

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Copper was discovered in North Africa.

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Answer:

is there anyway u could ut it in diffrent words i do not unders stand

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true or false. a less reactive halogen will displace a more reactive halogen from an aqueous solution of its salt.

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Answer:

I think the answer is false

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write short notes on the following:1. Analytical chemist 2. Chemical engineer 3. Healthcare scientists 4. Forensic scientist 5.

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