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IrinaVladis [17]
3 years ago
15

Why does electronegativity increase as you move from left to right across

Chemistry
1 answer:
Katen [24]3 years ago
7 0

Answer: increasing number of protons increases the positive charge of the nucleus.

Explanation: because as the electronegativity moves from left to right on the periodic table the protons do increase to make it into a positive charge.

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Holding temperature and pressure constant, what is the most important feature in determining the phase of a given organic compou
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3 years ago
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How many formula units are there in 450 g of Na2S04?
Mashutka [201]

Formula units in 450 g of Na_{2} So_{4} is 1.93 × 10²⁴ formula units.

<u>Explanation:</u>

First we have to find the number of moles in the given mass by dividing the mass by its molar mass as,

$\frac{450 g}{142.04 g/mol} =  3.2 moles

Now, we have to multiply the number of moles of Na₂SO₄ by the Avogadro's number, 6.022 × 10²³ formula units/mol, so we will get the number of formula units present in the given mass of the compound.

3.2 mol × 6.022 × 10²³ = 1.93 × 10²⁴ formula units.

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4 0
3 years ago
How many atoms are in 4 moles of oxygen?
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Explanation:

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<span>Decomposition reaction.</span>
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Choose all the answers that apply.
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Answer:

I believe it's the lowest portion of the atmosphere

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