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d1i1m1o1n [39]
3 years ago
15

Electron configuration of calcium

Chemistry
1 answer:
Eva8 [605]3 years ago
5 0
1s2 2s2 2p6 3s2 3p6 4s2 is the electron configuration for Calcium
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C(s) + S8(s) → CS2(l)
Vanyuwa [196]
The balanced chemical reaction is written as:

<span>4C(s) + S8(s) → 4CS2(l)

We are given the amount of carbon and sulfur to be used in the reaction. We need to determine first the limiting reactant to be able to solve this correctly.

</span>7.70 g C ( 1 mol / 12.01 g) =0.64 mol C
19.7 g S8 ( 1 mol / 256.48 g) = 0.08 mol S8

The limiting reactant would be S8. We use this amount to calculate.

0.08 mol S8 ( 4 mol CS2 / 1 mol S8 ) ( 256.48 g / 1 mol ) = 78.8 g CS2
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Is this sentence true or false ? hydrogen is considered to be a metal
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igor_vitrenko [27]

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Write down the molecular formula and molecular weight of carbon dioxide . ​
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