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marta [7]
1 year ago
5

An element has an atomic mass of 69.66 amu. It has two

Chemistry
1 answer:
marin [14]1 year ago
7 0

Answer: 63.26%

Explanation:

If we let the abundance of the first isotope be x, then:

69.66=(68.9255)(x)+(70.9247)(1-x)\\69.66=68.9255x+70.9247-70.9247x\\-1.2647=-1.9992x\\x=\frac{-1.2647}{-1.9992} \approx 0.6326

Which is equal to <u>63.26%</u>

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Answer:

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Explanation:

The shape of the s-sublevel is spherical in shape.

This sublevel has an azimuthal quantum number of 0 and it is spherical in shape;

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2 years ago
How are Parkinson's disease and ALS similar?
Diano4ka-milaya [45]

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Explanation:

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This is why the third option is the correct one.

4 0
3 years ago
A chemical reaction that has the general formula of AB + CB + Als best classified as a
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Explanation:

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3 years ago
How many formula units are there in 212 grams of mgCl2
AleksandrR [38]

Formula units are there in 212 grams of MgCl₂ are 830.56

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Here given data is

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1 mole of magnesium chloride has mass = 95.211 gram and contains 6.022×10²³formula units of magnesium chloride

Here 212 grams×6.022×10²³form unit of MgCl₂/95.211 gram = 830.56

Know more about magnesium chloride

brainly.com/question/22727305

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4 0
8 months ago
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3 years ago
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