Why is carbon dioxide a pure substance and not a mixture?

1 answer:

5 0

This is because carbon dioxide comes from many things pure if you added anything to it ( like oxygen, or methane ) then It would not be even close to being carbon dioxide anymore...

I hope that this helps you. :)

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(a) if a sample containing 2.00 ml of nitroglycerin is detonated, how many total moles of gas are produced? (b) if each mole of

KATRIN_1 [288]

(2.09 mL) x (1.592 g/mL) / (227.0871 g C3H5O9N3/mol) = 0.014652 mole C3H5O9N 4 moles C3H5O9N produce 12 + 6 + 1 + 10 = 29 moles of gases, so: (0.014652 mole C3H5O9N) x (29/4) = 0.106 mole of gases (b) (0.106 mol) x (46 L/mol) = 4.88 L gases (c) (0.014652 mole C3H5O9N) x (6/4) x (28.0134 g/mol) = 0.616 g N2

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3 years ago

What is the molarity of a 500.0 ml solution containing 0.75 moles of solute?

wariber [46]

M=mol/L
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4 years ago

-- A scientist combines 14 grams of potassium nitrate with an unknown amount of

igor_vitrenko [27]

Answer:

The unknown amount of potassium chloride is 13.6 grams.

Explanation:

The reaction of 14 grams of KNO₃ with KCl produces a total mass of 27.6 grams of the products.

The law of conservation of mass tells us that the total mass of the reactants must be the same that the total mass of the products. So, we can find the mass of KCl as follows:

$m_{r} = m_{p}$

Where r is for reactants and p is for products

$m_{KNO_{3}} + m_{KCl} = m_{p}$

$14 g + m_{KCl} = 27.6 g$

$m_{KCl} = 27.6 g - 14 g = 13.6 g$

Therefore, the unknown amount of potassium chloride is 13.6 grams.

I hope it helps you!

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3 years ago

Which is the best explanation for what keeps a balloon inflated Select one: a. gas particles colliding with the inside of the ba

goldfiish [28.3K]

The best explanation would be A. The reason the balloon is inflated is because its filled with gas, and the gas particles collide with the interior of the balloon to give it its shape.

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3 years ago

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Scorpion4ik [409]

D, litmus paper indicator

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3 years ago

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