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ollegr [7]
4 years ago
12

Can someone help me plz

Chemistry
1 answer:
V125BC [204]4 years ago
6 0
The first is focus the second is fault the third  is  epicenter 
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A scientist claims to have a cooling apparatus kept at -100C by liquid nitrogen. Is this possible? Why or why not?
Vilka [71]

Answer:

It is not possible

Explanation:

Nitrogen is a light gas that find application in my areas including being used to keep things cold.It has a freezing point of -210°c so the scientist Nitrogen in the question at 100°c have already freezed and no longer a liquid.

5 0
4 years ago
Calculate the molar concentration of the Cl⁻ ions in 0.87 M MgCl2(aq).
Fed [463]
The compound MgCl2(aq) is ionic which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of MgCl2 that dissolves.
MgCl2(s) --> Mg+(aq) + 2 Cl⁻(aq)
            [Cl⁻] = 0.87 mol MgCl2/1L × 2 mol Cl⁻ / 1 mol MgCl2 = 1.7 M
The answer to this question is [Cl⁻] = 1.7 M
8 0
3 years ago
Ionic compounds conduct electricity in the solid state true or false​
antoniya [11.8K]
<h3>Answer: False</h3>

In solid form, ionic compounds do not conduct electricity. Ionic compounds will conduct electricity when melted to their liquid state. This is due to the electrons being locked in place when in solid form, but liquid form allows for the electrons to move freely.

6 0
3 years ago
Answer pls ASAPPP 50 pointsss!!
amm1812

Answer:

There should only be one chemical reaction, this is because toasting the bread is not only using heat, but you cannot untoast the bread, and also theres a reaction with the amino acids and sugar in bread when it's cooked. I hope this helps you! :)

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3 years ago
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