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MA_775_DIABLO [31]

3 years ago

7

An increase in enzyme or substrate concentration will

1 answer:

lapo4ka [179]3 years ago

5 0

Answer: It will increase the rate of reaction

Explanation:

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Which statement best describes the collisions of gas particles according to the kinetic-molecular theory?

erastovalidia [21]

<span>The statement best describes the collisions of gas particles according to the kinetic-molecular theory is that the collisions of gas particles in an ideal gas are completely elastic. An expansion in the quantity of gas particles in the holder expands the recurrence of impacts with the dividers and in this manner the weight of the gas. The last propose of the motor sub-atomic hypothesis expresses that the normal active vitality of a gas molecule depends just on the temperature of the gas.</span>

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4 years ago

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Aluminum oxide is a covalent compound. True False

JulijaS [17]

This statement is false.

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Davinia. (:

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3 years ago

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A mixture of CO2 and Kr weighs 35.0 g and exerts a pressure of 0.708 atm in its container. Since Kr is expensive, you wish to re

ollegr [7]

Explanation:

Since, it is given that carbon dioxide is completely removed by absorption with NaOH. And, pressure inside the container is 0.250 atm.

For Kr = 0.250 atm and pressure $CO_{2}$ will be calculated as follows.

$CO_{2}$ = (0.708 - 0.250) atm

= 0.458 atm

Now, we will calculate the mole fraction as follows.

$CO_{2} = \frac{0.458}{0.708}$

= 0.646

Kr = $\frac{0.250}{0.708}$

= 0.353

Now, we will convert into gram fraction as follows.

$CO_{2} = 0.646 \times 44$

= 28.424

Kr = $0.353 \times 83.78$

= 29.57

Therefore, total mass is calculated as follows.

Total mass = (28.424 + 29.57)

= 57.994

Hence, the percentage of $CO_{2}$ and Kr are calculated as follows.

$CO_{2} = \frac{28.424}{57.99} \times 100$

= 49%

Kr = $\frac{29.57}{57.99} \times 100$

= 51%

Hence, amount of $CO_{2}$ and Kr present i mixture is as follows.

$CO_{2}$ in mixture = $35 \times 0.49$

= 17.15 g

Kr = $35 \times 0.51$

= 17.85 g

Thus, we can conclude that 17.15 g of $CO_{2}$ is originally present and 17.85 g of Kr is recovered.

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3 years ago

Who made the first periodic table of the elements?

netineya [11]

The periodic table was invented by Russian chemist Dmitri Mendeleev in 1869.

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Help me label the equation.. please?

k0ka [10]

Answer:

products = 2 Mg + O2

2 = Coefficient

arrow = yields

MgO = reactants

Explanation:

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3 years ago