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n200080 [17]
4 years ago
4

Why does the speaker become impatient when she is

Chemistry
1 answer:
Elden [556K]4 years ago
6 0

Answer:

She has important obligations to attend to.

Explanation:

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F 15 g of C₂H₆ reacts with 60.0 g of O₂, how many moles of water (H₂O) will be produced? (Hint: use what you know about limiting
Mars2501 [29]

Answer:

1.5 mol H2O

Explanation:

2C2H6 + 7O2 -> 4CO2 + 6H2O

The limiting reactant is C2H6

30 g C2H6 ->1 mol C2H6

15 g C2H6   -> x                      x= 0.5 mol C2H6

2 mol C2H6 -> 6 mol H2O

0.5 mol c2H6 -> x                    x = 1.5 mol H2O

4 0
4 years ago
A gas sealed in a drum container occupies 7.70 L at a sizzling 325C degrees. What will the volume be if the drum is quickly chi
grigory [225]

The volume of the drum after chilled quickly is 3.6 L.

<u>Explanation:</u>

As per the Charles Law, for any gas at constant pressure, volume of the gas is in direct proportion with the temperature measured in Kelvin. As the temperature increases, the gas expands and vice versa.

$\frac{V1}{T1} = \frac{V2}{T2} \\

After chilling the drum, the volume will get reduced and it can be found as,

V2 = $\frac{V1T2}{T1}

     = $\frac{7.7 L \times 282 K}{598 K}

      = 3.6 L

Here the drum is chilled quickly, that is temperature is reduced and so the volume also decreases.

3 0
3 years ago
A sealed piston contains 400 mL of air at standard ambient pressure. The piston is
nydimaria [60]

Answer:

324.24 kPa

Explanation:

Given that;

Initial pressure P1 = 101325 Pa

V1= 400 ml

P2 = ?

V2= 125mL

From Boyle's law;

P1V1 = P2V2

P2 = P1V1/V2

P2= 101325 × 400/125

P2= 324.24 kPa

5 0
3 years ago
Match the following pls
Elenna [48]

Answer:

1 d

2 c

3 b

4 e

5 a

4 0
3 years ago
Write down the Classification of a Molecule.
galina1969 [7]

Answer:

smallest unit element are made of

6 0
3 years ago
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