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3 years ago

Explain three reasons why potassium is larger than sodium.

Chemistry

1 answer:

Delicious77 [7]3 years ago

4 0

Answer: hope this is hopeful

Explanation:

1.So, potassium atom is bigger than sodium atom.

2.Sodium: The valence electron of sodium is in the 3s orbital. Potassium: The valence electron of potassium is in the 4s orbital. Atomic Size. Sodium: Sodium atom is

3. • While excess of sodium is harmful for us, low levels of potassium have also been found to be associated with certain disorders of lungs and heart.

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Answer: divide by 946.353

= 1.58 x 10^-4 or 0.000159

Explanation:

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3 years ago

A woman is trying to make sweet tea, but she just can’t seem to get it sweet enough. Which method could help her dissolve more s

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C. The child must have inherited sickle cell genes from both parents.

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(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~(~‾▿‾)~

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3 years ago

If 63.8 grams of aluminum metal (Al) react with 72.3 grams of sulfur (S) in a synthesis reaction, how many grams of the excess r

Jobisdone [24]

Answer:

23.2 g of Al will be left over when the reaction is complete

Explanation:

2Al + 3S → Al₂S₃

1 mol of Al = 26.98 g

1 mol of S = 32.06 g

Mole = Mass / Molar mass

63.8 g/ 26.98 g/m = 2.36 mole of Al

72.3 g / 32.06 g/m = 2.25 mole of S

2 mole of Aluminun react with 3 mole of sulfur

2.36 mole of Al react with (2.36 .3)/2 = 3.54 m of S

As I have 2.25 mole of S, and I need 3.54 S, is my limiting reagent so the limiting in excess is the Al.

3 mole of S react with 2 mole of Al

2.25 mole of S react with (2.25 m . 2)/3 = 1.50 mole

I need 1.50 mole of Al and I have 2.36, that's why the Al is in excess.

2.36 mole of Al - 1.50 mole of Al = 0.86 mole

This is the quantity of Al without reaction.

Molar mass . mole = Mass → 26.98 g/m . 0.86 m = 23.2 g

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4 years ago