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elixir [45]
3 years ago
12

HELP ME PLS....... PLSSSSSSSSSSSSSSSSSSSSSS

Chemistry
1 answer:
Tems11 [23]3 years ago
5 0

Answer: A different group of scientists using different methods.

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snow_tiger [21]

it is sunlight and you can see its the first one

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2 years ago
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A molecule that closely resembles the shape of a substrate and therefore also fits into the active site of an enzyme might serve
Fynjy0 [20]

Answer: inhibitor

Explanation:

Enzymes have a shape that closely resemble that of the substrate hence they fit into the substrate by lock and key mechanism. The activity of the enzyme hinges on its similarity with the substrate in shape. Any other molecule similar to the shape of the substrate can fit into the substrate thereby preventing the enzyme from locking with the substrate. Such substances are called inhibitors. They decrease the activity of an enzyme.

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3 years ago
A mixture of three gases has a total pressure at 298 K of 1560 mm Hg. the mixture is analyzed and is found to contain 1.50 mol N
Agata [3.3K]

Answer:

the partial pressure of Xe is 452.4 mmHg

Explanation:

Dalton's law of partial pressures says that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

The partial pressures can be calculated with the molar fraction of the gas, in this case, Xe.

Molar fraction of Xe is calculated as follows:

x_{Xe}=\frac{n_{Xe} }{n_{t} }

x_{Xe}=1.75/5.9\\x_{Xe}=0.29

Then, 0.29 is the molar fraction of Xe in the mixture of gases given.

To know the parcial pressure of Xe, we have to multiply the molar fraction by the total pressure:

Partial Pressure of Xe=1560mmHg*0.29

Partial Pressure of Xe=452.4mmHg

7 0
3 years ago
How many copies of H2 are required to balance this chemical equation? 2Al + 6HCl __H2 + 2AlCl3
larisa [96]
3 <span>copies of H2 are required to balance this chemical equation. Hope it helps</span>
7 0
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Which change in this process would shift the equilibrium to produce the
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It's not A because removing N2 would only shift the equation the opposite way.

It's not C and D because I don't think those affect the specific amount of each reactant/product produced. I think temperature only affects the speed at which the reaction is performed, which won't affect anything in this case.

7 0
3 years ago
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