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sineoko [7]
3 years ago
6

How do the atomic number and the mass number of an element

Chemistry
1 answer:
Doss [256]3 years ago
3 0

Answer:

A.

Explanation:

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lesantik [10]
200/19.32=10.352ms^-1
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PF Lewis Dot Structure<br> Not PF3 not PF4- <br> if you dont know dont answer
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Answer:

I think it's pf5or I don't know how to make the answer

Explanation:

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3 years ago
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How many moles of chlorine are used up in a reaction that produces 0.35kg of BCl3
maw [93]

4.48 mol Cl2. A reaction that produces 0.35 kg of BCl3 will use 4.48 mol of Cl2.

(a) The <em>balanced chemical equation </em>is

2B + 3Cl2 → 2BCl3

(b) Convert kilograms of BCl3 to moles of BCl3

MM: B = 10.81; Cl = 35.45; BCl3 = 117.16

Moles of BCl3 = 350 g BCl3 x (1 mol BCl3/117.16 g BCl3) = 2.987 mol BCl3

(c) Use the <em>molar ratio</em> of Cl2:BCl3 to calculate the moles of Cl2.

Moles of Cl2 = 2.987 mol BCl3 x (3 mol Cl2/2 mol BCl3) = 4.48 mol Cl2

4 0
3 years ago
Write the unit of acceleration​
babunello [35]

Answer:

\frac{m}{s^2}

Explanation:

'meters per second squared'

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How is pressure affected as depth increases?
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pressure increases as depth increases.

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