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Ostrovityanka [42]
3 years ago
9

PLEASE PLEASE HELP 1. Using a neutral atom that has an atomic number of 28 and a mass number of 152, how many protons, electrons

and neutrons are in this atom? Show your calculation.
Chemistry
1 answer:
vampirchik [111]3 years ago
7 0

Answer:

The answer to your question is:

Explanation:

Data

Atomic number = Z = 28

Mass number = A = 152

Atomic number number = # of protons

Mass number = # of protons + # of neutrons

Then

Protons = 28

Electrons = 28

Neutrons = 152 - 28 = 124

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A generator is not required to generate electrical energy when which of the following energy sources is used?
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A 1M solution is made of each item in a pair. When would this combination create a buffer? Chose the pairs below that you could
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Answer:

b. HCOOH/ NaHCOO.

Explanation:

A buffer system may be formed in one of two forms:

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a. HCI/NaOH. NO. HCl is a strong acid and NaOH is a strong base.

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Explain why an insoluble compound added to water is considered a nonelectrolyte.
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Explanation:

A non-electrolyte is defined as a solution which does not contain any ions and hence, it is unable to conduct electricity.

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  2. sp²
  3. sp²
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Refer to the sketch attached.

<h3>Explanation</h3>

The hybridization of a carbon atom depends on the number of electron domains that it has.

Each chemical bond counts as one single electron domain. This is the case for all chemical bonds: single, double, or triple. Each lone pair also counts as one electron domain. However, lone pairs are seldom seen on carbon atoms.

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