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kozerog [31]
3 years ago
7

423 Quiz Work Simple Machines and Power

Chemistry
1 answer:
g100num [7]3 years ago
7 0
I think i think i think i think i think it’s c
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Which of the following statements correctly explains why bromination reactions are more selective than chlorination reactions.
Vinvika [58]

Answer: A bromine radical is more stable than chlorine radical, so it is less reactive and more choosy.

Explanation:

A chlorine atom being more electronegative in nature is able to attract a hydrogen atom more readily towards itself as compared to a bromine atom.

Since bromine is less electronegative in nature so bromine will be more selective as a hydrogen abstracting agent. As a result, bromine radical is more stable in nature than chlorine radical.

Thus, we can conclude that bromine radical is more stable than chlorine radical, so it is less reactive and more choosy.

6 0
3 years ago
What will be the ph of a buffer solution containing an acid of pka7. 5, with an acid concentration exactly one fourth of that of
Lilit [14]

The pH of a buffer solution containing acid of pKa 7.5 will be 8.1.

The pH of a solution indicates its acidity or basicity. A pH below 7 is acidic, while pH above 7 is basic. 7 is considered as the neutral value.

A buffer is a solution that has the ability to resist the change in pH when an acid or a base is added to it. The natural example of buffer is blood.

According to the question, pKa of acid = 7.5

If concentration of base is x then, concentration of acid will be x/4.

According to the Henderson–Hasselbalch equation,

pH = pKa + log [A⁻] / [HA]

pH = 7.5 + log [\frac{x}{x/4}]

pH = 7.5 + log 4 ⇒ 7.5 + 0.602

pH = 8.1

To know more about buffer, here

brainly.com/question/22821585

#SPJ4

5 0
2 years ago
Which of the following is a unit of volume in the English system of measurement? A. Meters B. Gallons C.liters per cubic gram D.
Dmitry [639]
I think c
 please forgive me if im wrong

8 0
3 years ago
Read 2 more answers
List three possible results of a double replacement reaction
Naddik [55]
1. two compounds form
2. precipitate forms
3. ions exchanged between the two reactants
8 0
3 years ago
What is the numbers of molecules for 65.8g of CO2?
baherus [9]

Answer:

One gram of carbon dioxide contains 13.6 x 10²¹ number of molecules.

Explanation:

4 0
2 years ago
Read 2 more answers
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