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Inessa05 [86]
3 years ago
14

Help I don't get it what does this mean

Biology
2 answers:
Veronika [31]3 years ago
6 0

so the first one is sodium chloride

second one is Magnesium oxide

Third one is Calcium hydroxide

julia-pushkina [17]3 years ago
4 0

You just have to write them in their word form;

1 - 3 molecules of sodium chloride.

2 - 4 molecules of magnesium oxide.

3 - (OH)^{2} stands for "hydroxide" and can be added to many different molecules.



Hope it helped,


BioTeacher101

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