3 years ago

How many valence electrons are found in a neutral atom of arsenic?

Chemistry

1 answer:

Temka [501]3 years ago

7 0

Answer:9

Explanation:

becuase there is a certain balance

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How many molecules are there in 45 moles of diphosphorus trioxide?

Artist 52 [7]

Answer:

$2.71(10^{25})$ molecules

Explanation:

Remember 1 mol is equal to Avogadro's number

$45 mol (\frac{6.02(10^{23}) molecules}{1 mol})$

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3 years ago

How many grams are equivalent to 1.80 x 10^-4 tons? (English tons)

konstantin123 [22]

Answer:

163.44 g

Explanation:

We know that one ton is equal to 2000 lbs and one lb is equal to 454 grams.

Solution:

1.80 × 10∧-4 ton× 2000 lb/ton× 454 g/lb

1.80 × 10∧-4 ton× 2× 10³lb/ton× 454 g/lb

1634.4 g/ 10 = 163.44 g

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3 years ago

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4 years ago

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3 years ago