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Elena L [17]
3 years ago
5

Please help me with this. due today

Chemistry
2 answers:
Inessa [10]3 years ago
5 0

Answer:

Atomic Theory

antoniya [11.8K]3 years ago
5 0

atomic theory

hope this helps :)

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Answer:

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Explanation:

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6 0
3 years ago
What is the mass number of the atom shown?
german

Answer:

21

Explanation:

Formula;

Mass number = number of protons + number of neutrons

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7 0
4 years ago
What are chemical properties of minerals??
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4 0
4 years ago
Is calcium disodium ionic or covalent?
Nostrana [21]
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7 0
4 years ago
If a sample contains 70.0 % of the R enantiomer and 30.0 % of the S enantiomer, what is the enantiomeric excess of the mixture?
NeTakaya

Answer:

the enantiomeric excess of the mixture is 40%

Explanation:

The computation of the enantiomeric excess of the mixture is shown below:

As we know that

= |\frac{R - S}{R + S} |\times 100\\\\= |\frac{70 - 30}{70 + 30}| \times 100\\\\= 40\%

Hence, the enantiomeric excess of the mixture is 40%

3 0
3 years ago
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