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blondinia [14]
3 years ago
5

HELLPP!!! plz!! im confused.

Chemistry
2 answers:
lara [203]3 years ago
7 0
The reaction reaches equilibrium at 2.75 seconds
pav-90 [236]3 years ago
3 0

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

Equilibrium is defined as the condition when the concentration of the reactants and products are constant. The ratio of their concentration remains constant, it does not vary.

The forward reaction and backward reaction occur at the same rate.

Rate of forward reaction = Rate of backward reaction

From the graph, it is clearly visible that the reaction reached equilibrium a 2.75 seconds, where the concentration of reactants and concentration of products are constant. After this point, the concentration of products starts to increase and the concentration of reactants starts to decrease.

Hence, the correct answer is Option A.

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A 500. mL gas sample is collected over water at a pressure of 740 mmHg and 25.0 °C. What is the volume of the dry gas at STP?
Lera25 [3.4K]

Answer:

Volume of dry gas at STP = 0.432 liters or 432 ml

Explanation:

Given:

Pressure (P) = 740 mmHg - 24 mmHg = 716 mmHg

Temperature (t) = 25 degrees C + 273 K = 298 K

500 ml = 0.5 l

Find:

Volume of dry gas at STP

Computation:

[P1][V1] / T1 = [P2][V2] / T2

[716][0.5] / 298 K = [760][ x Liters] / 273 K

x = 0.432 Liters

Volume of dry gas at STP = 0.432 liters or 432 ml

7 0
3 years ago
Number of hydrogen atom(s) in water (H2O)
Ray Of Light [21]

Answer:

Maybe

Explanation:

the number of hydrogen atom in water is 2..

hope it helps

7 0
3 years ago
According to the law of conservation of mass, if five atoms of hydrogen are used
Blababa [14]

Answer:

it would be 07

mark  brainlyest

4 0
2 years ago
A 0.5 kg ball rolls down a frictionless inclined plane. The height of the inclined plane is 0.5m. What is the kinetic energy of
joja [24]

Answer:

2.45Joules

Explanation:

since kinetic energy is K.E.=1/2mv^{2}

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v^{2}=9.8

v=\sqrt{9.8} =3.13m/s

now k.e. = 0.5*m*v^{2} =0.5*0.5*9.8 =2.45J

8 0
3 years ago
What following oxide react with both acids and bases to form salts.​
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8 0
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