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OleMash [197]
3 years ago
13

Which statement correctly describes a chemical reaction?

Chemistry
1 answer:
Trava [24]3 years ago
6 0
The correct answer is C
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21 mL It required 42.35 mL of H2SO4 to neutralize 21.17 mL of 0.5000 M NaOH. Calculate the concentration of H2SO4
bija089 [108]
The balanced equation for the above reaction is 
2NaOH + H₂SO₄ ---> Na₂SO₄ + 2H₂O
stoichiometry of NaOH to H₂SO₄ is 2:1
number of NaOH moles required-0.5000 M / 1000 mL/L x 21.17 mL = 0.010585 mol
According to stoichiometry, acid moles required are 1/2 of the base moles reacted
Therefore number of H₂SO₄ moles reacted - 0.010585 /2  mol
Number of moles in 42.35 mL of H₂SO₄ - 0.010585 /2 mol
Therefore in 1 L solution - (0.010585) /2 / 42.35 mL x 1000 mL/L = 0.125 M
Molarity of H₂SO₄ - 0.125 M
5 0
3 years ago
The structure of the periodic table is based on the distribution of ___ in each element. The elements are arranged in horizontal
Harlamova29_29 [7]

Answer:

I dont know the first blank but I know the second one is groups and the last one is periods.

3 0
3 years ago
Which physical property of matter do these four objects have in common?
aleksandrvk [35]

Answer:

A- Non-magnetic

Explanation:

Brass, rubber, plastic, and glass will not be attracted by a magnet.

4 0
3 years ago
If a combination reaction takes place between potassium and chlorine what is the product
zepelin [54]
It would be potassium chloride or kcl
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4 years ago
In neutralization reaction _______ and ________ is produced.
dezoksy [38]

Answer:

In neutralization reaction water and a salt is produced.

4 0
3 years ago
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