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wariber [46]
3 years ago
14

Please help Physical Science! Pretty easy.

Chemistry
1 answer:
Alina [70]3 years ago
6 0
A. I think the water may either rise up or it could leak out into the pie pan.

B. The air pressure would increase inside the glass, because you're adding a large amount of air into it.
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cluponka [151]
0.5 litres contain 1.1 moles
therefore 1 litre will have= 1*1.1/0.5
             molarity=2.2M
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3 years ago
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IgorLugansk [536]
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500 mL solution of calcium chloride with a concentration of 0.75 mol/L. The mass of solute needed to make this solution is ___ _
BabaBlast [244]

Answer:

41.63g

Explanation:

Given parameters:

Volume of CaCl₂  = 500mL  = 0.5L

Concentration  = 0.75mol/L

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Mass of the solute needed = ?

Solution:

The mass of the solute can be derived using the expression below;

     Mass  = number of moles x molar mass

But,

   Number of moles  = Concentration x Volume

So;

     Mass  = Concentration x Volume x molar mas

Molar mass of CaCl₂  = 40 + 2(35.5) = 111g/mol

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5 0
2 years ago
What part of the atom contains the most space: the nucleus or the energy levels? Why?
Anarel [89]

Answer:

I don't know 100% but im pretty sure its electrons, if im wrong im really sorry let me know in the comments ill change it

explanation

the nucleus has more weight but its more compact but the electrons are spread apart circling the nucleus and therefor take up more space

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full moon fasholi. woodgang

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