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Dmitriy789 [7]
2 years ago
5

An atom of magnesium with 14 neutrons has a mass number of what ?

Chemistry
1 answer:
murzikaleks [220]2 years ago
5 0

Answer:

26

Explanation:

Given parameters:

Number of neutrons  = 14

Unknown:

Mass number  = ?

Solution:

The mass number of an atom is the sum of protons and neutrons in the atom.

 mass number = number of protons + number of neutrons

Since the atom here is magnesium, number of protons is 12

Mass number = 14 + 12  = 26

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Explanation:

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3 years ago
How many particles are there in 5.0 moles​
grigory [225]

Answer:

3.01 × 10^24 particles

Explanation:

According to Avagadro, in one mole of a substance, there are 6.02 × 10^23 atoms or particles.

Using the formula: N = n × NA

Where;

N= number of particles or atoms

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8 0
3 years ago
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Answer:

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3 0
2 years ago
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What material causes a wave to bounce off of it
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3 years ago
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The graph shows the solubility of several different salts in water, across a range of temperatures. According to the
sladkih [1.3K]

Answer:

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  • See the graph attached

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The attached graph with a green and a red arrow facilitates the understanding of this explanation.

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3 years ago
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