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nignag [31]
3 years ago
8

Isn’t urgent the first 3 will be marked BRAINIEST

Chemistry
2 answers:
valentinak56 [21]3 years ago
8 0
Aluminum Sulphate:

Al2(SO4)3

Magnesium Hydroxide:

Mg(OH)2
bearhunter [10]3 years ago
7 0

Answer:

Al2(SO4)3 and Mg(OH)2

Explanation:

1. Al has a charge of 3-, and SO4 of 2-

when you cross multiply the charges you get

Al2 and (SO4)3

*the reason theres a bracket around the sulfate ion is that the charge 3 is not for oxygen only, but the entire sulphate ion*

Hence, Al2(SO4)3

2. Mg has a charge of 2- and OH of 1-

again cross multiply

Mg (you dont need to add the 1) and (OH)2

again, the bracket around OH means the charge appiles to Oxygen AND hydrogen

hence, Mg(OH)2

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Answer:

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Explanation:

The volume of a substance when given the density and mass can be found by using the formula

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Hope this helps you

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