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Greeley [361]
3 years ago
10

Y’all pls help me with this I’m literally so done

Chemistry
1 answer:
Romashka [77]3 years ago
8 0

Answer:

Explanation:

I can help you

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Worth 80 points!!! I forget energy shells
gizmo_the_mogwai [7]

Hey there! The answer you're looking for is Helium


Here shows the list of per shell

Hydrogen

Lithium

Beryllium

3 0
3 years ago
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What is the molality of a solution made by dissolving 2 moles of NaOH in 10<br> kg of water?
zaharov [31]

Answer:

0.2mol/kg

Explanation:

molality is the concentration of a solution in moles of solute per kilogram of solvent

moles of solute (NaOH) = 2moles

mass of solvent in kg. =10kg

Therefore molality. = 2moles/10 kg

=0.2mol/kg

5 0
3 years ago
A polysaccharide is best described as
AURORKA [14]

Answer:

3 or more simple sugars combined

Explanation:

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7 0
4 years ago
What happens to a water bottle in a freezer and why
Andrews [41]
The water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild. 
and also remember gas - liquid - soild gas change to liquid by hot air  and liuid change to soild by clod air 
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5 0
4 years ago
Please help me with this chemistry question. Image attached.
Leya [2.2K]

Answer:

Moles of zinc chloride produced are 0.09942 moles.

Explanation:

Zn+2HCl\rightarrow ZnCl_2+H_2

Mass of zinc used = 6.5 g

Moles of zinc =\frac{6.5 g}{65.38 g/mol}=0.09942 mol

According to reaction, 1 mol of zinc gives 1 mole of zinc chloride,then 0.09942 moles of zinc will give :

\frac{1}{1}\times 0.09942 =0.09942 mol of zinc chloride

Moles of zinc chloride produced are 0.09942 moles.

3 0
3 years ago
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