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Luden [163]
3 years ago
5

The blue underlined part of the chemical formula above represents a(n) ______________.

Chemistry
1 answer:
Nataly [62]3 years ago
7 0
I’m not totally sure but I think the answer is B
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An aqueous magnesium chloride solution is made by dissolving 7.15 moles of MgCl2 in sufficient water so that the final volume of
irinina [24]

Answer:

2.86mol/L

Explanation:

Given parameters:

Number of moles of MgCl₂  = 7.15moles

Volume of solution  = 2.50L

Unknown:

Molarity of the MgCl₂ solution = ?

Solution:

The molarity of a solution is the number of moles of solute found in a given volume.

  Molarity  = \frac{number of moles }{volume}  

 Insert the parameters and solve;

   Molarity  = \frac{7.15}{2.5}   = 2.86mol/L

4 0
3 years ago
Acid strength in a series of h−a molecules increases with increasing size of
-BARSIC- [3]
Hello there!

The statement that Acid strength in a series of H-A molecules increases with increasing size of A is True.

When only the size is involved, increasing the size will increase the Acid strength because as size increases, the H-A bond will become weaker as the atoms will be farther apart. Acid strength is related to the ability to release H⁺ ions and a weaker H-A bond will release H⁺ more easily. 

Have a nice day!
8 0
3 years ago
In the balanced chemical reaction shown below, what is the molar ratio of O2 to H2O
icang [17]

Answer: 5:3

Explanation:

4 0
3 years ago
Hello! Can you please help me with this because I don’t get it at all. Thanks.
denpristay [2]

Answer:

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Explanation:

4 0
3 years ago
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The pH of a solution is 2.0. Which statement is correct? Useful formulas include , , , and .
allsm [11]

Answer:

if the pH of a solution is 2.0 that means the solution would be acidic.

Explanation:

3 0
3 years ago
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