Total no. of protons n neutrons
The answers D man have fun
Answer:
S= 2(1) = 2
O= 2(4) = 8
Na= 2(2) = 4
Explanation:
The given compound is:
2Na₂SO₄
An element is a distinct substance that cannot be split up into simpler substances.
So;
Number of atoms of elements here are:
S= 2(1) = 2
O= 2(4) = 8
Na= 2(2) = 4
To arrange these elements according to the atomic radius (smallest to largest) would be:
Be, Mg, Ca, Sr, Ba
<span>Na</span>₂<span>CO</span>₃<span> + 2 HCl = 2 NaCl + CO</span>₂<span> + H</span>₂<span>O
106 g Na</span>₂CO₃ -------- 2 x 36.5 g HCl
<span> x g Na</span>₂CO₃ ---------- 750 g HCl
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Mass of Na</span>₂CO₃ = 750 x 106 / 2 x 36.5
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Mass ( Na</span>₂CO₃) = 79500 / 73
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Mass = 1089.04 g
Number of moles = 1089.04 / 106 => 10.27 mols of Na</span>₂CO₃
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hope this helps!
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