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sattari [20]
2 years ago
6

A student is preparing 500 mL of a 0.1M solution of magnesium chloride to test the

Chemistry
1 answer:
Dafna11 [192]2 years ago
8 0
4 I think I’m not 100
sure
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What is the volume of 2.00 moles of ideal gas at 25'c and 121.59 kpa of pressure
katrin [286]

Answer:

40.73 L.

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 = 121.59 kPa/101.325 = 1.2 atm).

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

n is the no. of moles of the gas in mol (n = 2.0 mol).

R  is the general gas constant (R = 0.082 L.atm/mol.K),

T is the temperature of the gas in K (T = 25°C + 273 = 298 K).

<em>∴ V = nRT/P</em> = (2.0 mol)(0.082 L.atm/mol.K)(298 K)/(1.2 atm) = <em>40.73 L.</em>

6 0
3 years ago
Which of the following compounds share electrons? NaCl CO CsF KBr
ArbitrLikvidat [17]
Covalent compounds share with each other, whilst Ionic compounds take from each other. 

Covalent compounds are composed of 2 or more NONMETALS.

So, it would be CO, since the rest of the compounds contain metals in them.
7 0
4 years ago
Earth is approximately 149,600,000 kilometers away from the sun. How would this distance be expressed in scientific notation?
Ronch [10]

Answer:

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3 years ago
Nuclear fusion differs from nuclear fission because nuclear fusion reactions- True or False
White raven [17]

I think the answer would be True

8 0
4 years ago
Methane undergoes combustion. Which products form?
Aleksandr [31]

<u>M</u><u>e</u><u>t</u><u>h</u><u>a</u><u>n</u><u>e</u><u> </u>is a carbon compound which undergoes combustion to <em><u>release energy</u></em> and form bi production which are <u>Carbon</u><u> </u><u>dioxide</u><u> </u>( CO2 )<u> </u><u>and</u><u> </u> <u>W</u><u>ater</u> ( H20 ).

the balanced chemical equation for the reaction is : -

  • CH4 + 2 O2 =》CO2 + 2 H2O
3 0
3 years ago
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