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3 years ago

6

Compound X has the same molecular formula as butane but has a different boiling point and melting point. What can be concluded a

bout Compound X?

1 answer:

Vsevolod [243]3 years ago

3 0

Compound X is an isomer of butane with different chain types. It is either straight chain or bend chain.

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What is the density of a substance that has a mass of 20 g and a volume of<br> 10 mL?

Paha777 [63]

Answer:

That unknown substance is water

Explanation:

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2 years ago

STALIN [3.7K]

Answer: The space occupied by the gas at 400 torr and $25^{o}C$ is 250 mL.

Explanation:

Given: $V_{1}$ = 250 mL, $P_{1}$ = 800 torr, $T_{1} = 50^{o}C$

$V_{2} = ?$ , $P_{2}$ = 400 torr, $T_{2} = 25^{o}C$

Formula used is as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}$

Substitute the values into above formula as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{800 torr \times 250 mL}{50^{o}C} = \frac{400 torr \times V_{2}}{25^{o}C}\\V_{2} = 250 mL$

Thus, we can conclude that space occupied by the gas at 400 torr and $25^{o}C$ is 250 mL.

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2 years ago

How many moles of O2 are needed to react completely with 35.0 mol of 10 points

yKpoI14uk [10]

D.10.0 mol is the correct

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3 years ago

Calculate the standard potential for the following galvanic cell: Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s) which has the overall bala

mylen [45]

Answer:

1.06 V

Explanation:

The standard reduction potentials are:

Ag^+/Ag E° = 0.7996 V

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The half-cell and cell reactions for Ni | Ni^2+ || Ag^+ | Ag are

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<u>2Ag^+ 2e- → 2Ag </u> <u>E° = 0.7996 V </u>

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To three significant figures, the standard potential for the cell is 1.06 V .

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3 years ago

Which of the following elements is a metalloid?

Deffense [45]

The answer to your question would be silicon. I hope this helped!!!

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3 years ago

Read 2 more answers