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Lapatulllka [165]
3 years ago
8

Separating Mixtures Checkpoint ( giving brainly )

Chemistry
2 answers:
Setler79 [48]3 years ago
7 0

Answer:

evaporation

Explanation:

Alex Ar [27]3 years ago
4 0
Condensation i think
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Explanation:

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You are performing a chemical reaction in a test tube. The test tube gets colder as the reaction takes place. This chemical reac
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Explanation:

A chemical reaction in which heat energy is absorbed by the reactant molecules is known as an endothermic reaction.

Therefore, upon completion of this reaction the container in which reaction is carried out becomes colder.

A chemical reaction in which heat energy is released by the reactant molecules is known as an exothermic reaction.

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3 years ago
While performing chores, Maria noticed that she would get shocked each time she touched her washing machine. Which of the follow
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8 0
3 years ago
What amount in moles does 242 L of carbon dioxide occupy at 1.32 atm and 20 degrees C
Gelneren [198K]

Answer:

13.28 mol.

Explanation:

  • We can use the general law of ideal gas:<em> PV = nRT.</em>

where, P is the pressure of the gas in atm (P = 1.32 atm).

V is the volume of the gas in L (V = 242.0 L).

n is the no. of moles of the gas in mol (n = ??? mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K).

T is the temperature of the gas in K (T = 20.0° + 273 = 293.0 K).

∴ n = PV/RT = (1.32 atm)(242.0 L)/(0.0821 L.atm/mol.K)(293.0 K) = 13.28 mol.

7 0
3 years ago
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