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Klio2033 [76]
3 years ago
14

What should you always do at the end of a lab

Chemistry
1 answer:
Murrr4er [49]3 years ago
3 0

Answer:clean up the area

Explanation:

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What's the difference between a molecular formula and a structural formula
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Each period in the periodic table corresponds to a
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III. For the following four sections: If you are given the formula, name the
serious [3.7K]

Answer:

15.Potassium oxide

16.Calcium chloride

17.Aluminium sulphide

18.CaS

Explanation:

15.K is the chemical symbol of Potassium and generally the name of the non-metal at the end of a formula has the suffix '-ide' and since O is oxygen, the name becomes Potassium oxide.

16. The same applies here. Ca is Calcium and Cl is Chlorine but since its the non-metal at the end, it ends in -ide. So Calcium chloride.

17.The same applies here too. Al is Aluminium and S is Sulphur so Aluminium sulphide.

18. Calcium's symbol is Ca and that of Sulphur is S and that gives the formula CaS.

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