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svetlana [45]
4 years ago
10

. What elements are present in the following chemical formula?KNO3​

Chemistry
1 answer:
White raven [17]4 years ago
8 0
The answer would be potassium nitrate.
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If measurements of a gas are 100L and 300 kilopascals and then the gas is measured a second time and found to be 75L, describe w
Tanya [424]

Answer:

The pressure of the gas increased (if temperature remained constant).

The Boyle's law supports this observation.

Explanation:

The initial measurements of the gas are given as;

volume = 100 L

Pressure = 300 kpa

The second measurement is given as;

Volume = 75 L

The second reading implies that the volume of the gas has decreased. If the temperature of the gas remained constant, then the pressure must have increased according to the Boyle's law;

At constant temperature, the pressure of a given mass of an ideal gas is inversely proportional to its volume.

4 0
3 years ago
If 5000 balloons are each filled with 0.5L then how many does each balloon have
Colt1911 [192]
ANSWER:

If 5000 balloons are each filled with 0.5L, then each balloon has 0.5L. The answer is in the question.

Please mark as brainliest if you found this helpful! :)
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5 0
4 years ago
Lipids are soluble in a class of solvents called????
dsp73

Lipids are in a class called fat or lipid solvents.

6 0
4 years ago
A reaction has a forward rate constant of 2.3 × 106 s-1 and an equilibrium constant of 4.0 × 108. what is the rate constant for
avanturin [10]
Answer is: 5,75·10⁻¹.
Kf = 2,3·10⁶ 1/s.
K = 4,0·10⁸ 1/s.
Kr = ?
Kf - <span>forward rate constant.
K - </span><span>equilibrium constant.
Kr - </span><span>reverse rate constant.
</span>Since both Kf and Kr are constants at a given temperature, their ratio is also a constant that is equal to the equilibrium constant K.<span>
K = Kf/Kr.
Kr = Kf/K = </span>2,3·10⁶ 1/s ÷ 4,0·10⁸ 1/s = 5,75·10⁻¹.

5 0
3 years ago
Calculate how many grams of oxygen form when each quantity of reactant completely reacts.. . 2HgO-----&gt;2Hg+O2
goblinko [34]
<span>6.96g HgO
hope it helps.
</span>
3 0
3 years ago
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