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Dmitriy789 [7]
3 years ago
12

Which chemical can remove color of red/Pink phenol and make it clear like water transparent?

Chemistry
2 answers:
Liula [17]3 years ago
6 0
Lethal of skin by absorption
NNADVOKAT [17]3 years ago
3 0

Explanation:

Chemical reactions often produce spectacular color changes that appear to happen just by magic. Now is your chance to put some tricks up your sleeve and wow your friends with scientific sleight of hand.

(NOTE: Some of the chemicals used in these projects can be hazardous if misused. Use caution when working with chemicals! Read the information on the chemical label before you start, and always wear protective lab safety equipment such as goggles, gloves, and aprons. Adult supervision required.)

Check out our top-selling beginner chemistry set and home chemistry kit to perform classic experiments. See our complete introduction to chemistry kit for a full overview of chemistry concepts and experiments.

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Which of the following is true of mixtures?
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Read 2 more answers
The activation energy for a reaction is changed from 184 kJ/mol to 60.5 kJ/mol at 600. K by the introduction of a catalyst. If t
Ahat [919]

Answer:

The catalyzed reaction will take 1,41 s

Explanation:

The rate constant for a reaction is:

k = A e^{-\frac{Ea}{RT}}

Assuming frequency factor is the same for both reactions (with and without catalyst) it is possible to obtain:

{\frac{k1}{k2}} = e^{-\frac{Ea_{2}-Ea_{1}}{RT}}

Replacing:

{\frac{k1}{k2}} = e^{-\frac{60,5kJ/mol-184kJ/mol}{8,314472x10^{-3}kJ/molK*600k}}

{\frac{k1}{k2}} = 5,64x10^{10}

That means the reaction occurs 5,64x10¹⁰ faster than the uncatalyzed reaction, that is 2537 years / 5,64x10¹⁰ = 4,50x10⁻⁸ years. In seconds:

4,50x10⁻⁸ years×\frac{365days}{1year}×\frac{24hours}{1day}×\frac{3600s}{1hour} =<em> 1,41 s</em>

I hope it helps!

6 0
3 years ago
Are fossils likely to form in areas that experience a lot of erosion on daily basis?
frosja888 [35]
No, There are not likely to form in areas that experience a lot of erosion on a daily basis.
6 0
2 years ago
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