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malfutka [58]
3 years ago
10

On the Celsius scale, at what temperature does water boil? A. 0° B. 100° C. 212° D. 32°

Chemistry
2 answers:
rjkz [21]3 years ago
6 0
The answer is b. 100
nika2105 [10]3 years ago
4 0
<span>B. 100° C is the answer. A is for the freezing point</span>
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Does Hornfels have biological origins
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Phenol red is an indicator that changes color over a range from ph=6.4 to ph=8.0. what is ka of phenol red?
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First, we will get the average pH of the two given values:
average pH = (6.4+8) / (2) = 7.2
At this average pH, the concentration of the acid from the phenol red is equal to the concentration of the base.
pH = 7.2
[H+] = 10^(-7.2) = 6.3 * 10^-8

Phenol red has the general formula HA, this gives us:
HA <.......> H+ + A- 
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<span>Ka = [H+][A-]/ [HA]
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7 0
3 years ago
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6 0
3 years ago
What is the guiding formula for combustion reactions​
IgorLugansk [536]

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Draw the alkyl bromide(s) you would use in a malonic ester synthesis of ethyl 3-methylbutanoate.
Gennadij [26K]

The structure of the alkyl bromides used in a malonic ester synthesis of ethyl 2-methyl-4-pentenoate.

Ethyl 2-methyl-4-pentenoate by Malonic ester synthesis.

The alkylation of diethyl malonate or a related ester of malonic acid at the carbon alpha (immediately next) to both carbonyl groups, followed by conversion to a substituted acetic acid, characterizes the chemical reaction known as the malonic ester synthesis.

As a result, it is evident from the structure of ethyl 2-methyl-4-pentenoate that ethyl and methyl bromides are the alkyl bromides employed.

To learn more about Malonic ester synthesis refer here:

brainly.com/question/17237043

#SPJ4

4 0
1 year ago
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