3 years ago

Help

Chemistry

2 answers:

Dominik [7]3 years ago

7 0

Answer:

$2422 - x002x0$

ser-zykov [4K]3 years ago

7 0

Answer:

Mg + 2 HCl = MgCl2 + H2

2 AgNO3 + K2SO4 = Ag2SO4 + 2 KNO3

Explanation:

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Brain if correct (3)

Anni [7]

Answer:

Darker colored items absorb more of the sunlight.

Explanation:

Lighter colored item tend to reflect more of the sunlight

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2 years ago

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Which of the following is a strong acid? OH– HCl NaCl NaOH

Paul [167]

The answer is HCL
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5 0

3 years ago

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nikdorinn [45]

I think it’s C but not certainly positive

8 0

2 years ago

What is the total mass of the reactants in the equation below?

Keith_Richards [23]

Answer:

266.7 g

Explanation:

Molar mass of AlCl3=133.3405 g

2AlCl3=2×133.34

=266.7 g

Please mark brainliest

4 0

3 years ago

I have a 5 liter container of oxygen (O 2 ) gas at 2.0 atm and 25 0 C, what mass of gas is inside this

Thepotemich [5.8K]

Answer:

$m=13.1gO_2$

Explanation:

Hello,

In this case, by using the ideal gas equation, we first compute the moles of oxygen at the given volume, pressure and temperature:

$PV=nRT\\\\n=\frac{PV}{RT}=\frac{2.0atm*5L}{0.082\frac{atm*L}{mol*K}(25+273.15)K} =0.41mol$

Then, since molar mass of gaseous oxygen is 32 g/mol, we compute the contained mass in grams as shown below:

$m=0.41mol*\frac{32g}{1mol}\\\\m=13.1gO_2$

Best regards.

3 0

3 years ago