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Inga [223]
3 years ago
15

PLEASE HELP

Chemistry
1 answer:
Anni [7]3 years ago
3 0
B water at 99c since it is the hottest
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When a 1.00 L sample of water from the surface of the Dead Sea (which is more than 400 meters below sea level and much saltier t
Harlamova29_29 [7]

Answer: Molarity of MgCl_2 in the original sample was 1.96M

Explanation:

Molarity is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{\text{no of moles}}{\text{Volume in L}}

{\text {moles of solute}=\frac{\text {given mass}}{\text {molar mass}}=\frac{186g}{95g/mol}=1.96

Now put all the given values in the formula of molarity, we get

Molarity=\frac{1.96}{1.00L}

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Thus molarity of MgCl_2 in the original sample was 1.96M

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When you break an iron magnet into two pieces, you get ____.
Rudiy27

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two north poles and two south poles

Explanation:

A single magnet has a north pole and a south pole. If it is broken into two pieces, then each of the two pieces will have a north pole and a south pole.

No matter how many times or into how many pieces a magnet is broken, the resulting pieces will have two poles each.

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the atomic number tells you the number of _______ in one atom of an element. It also tells you the number of ______ in a neutral
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