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3 years ago

2.

Chemistry

1 answer:

Dmitry_Shevchenko [17]3 years ago

6 0

Answer:

Atomic number

Explanation:

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What can you extract from a refinery

Dmitrij [34]

Answer:

i dont know ask the man behind the man

Explanation:

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3 years ago

Help ASAP pleaseeee thank you

Artyom0805 [142]

The correct answer is B. balance

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3 years ago

How many moles of solute are in 53.1 mL of 12.5M HCI?

Deffense [45]

Molarity = moles of solute/volume of solution in liters.

From this relation, we can figure out the number of moles of solute by multiplying the molarity of the solution by the volume in liters.

We have 53.1 mL, or 0.0531 L, of a 12.5 M, or 12.5 mol/L, solution. Multiplying 12.5 mol/L by 0.0531 L, we obtain 0.664 moles. So, in this volume of solution, there are 0.664 moles of solute (HCl).

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2 years ago

A gas occupies 547 L at 331K. Find its volume at 376K. You must show all of your work to receive credit. Also, name the gas law

zysi [14]

621.4L

Explanation:

Given parameters:

Initial volume = 547L

Initial temperature = 331K

Final temperature = 376K

Unknown:

Final volume = ?

Solution:

The appropriate gas law to use is the Charles's law.

The Charles's law shows the relationship between the volume and temperature of a gas under constant pressure.

The law states that "The volume of a fixed of a gas varies directly as its absolute temperature if the pressure is constant".

Mathematically;

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

V₁ is the initial volume

T₁ is the initial temperature

V₂ is the final volume

T₂ is the final temperature

Since the unknown is the final volume, we make it the subject of the expression;

V₂ = $\frac{V_{1} }{T_{1} } x T_{2} = \frac{547}{331 } x 376$

V₂ = 621.4L

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

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3 years ago

Read 2 more answers

A gate made of painted iron is beginning to rest in areas where the paint has worn away why is the formation of rust considered

Pavel [41]

Answer:

because it is two substances reacting together to create a new substance

Explanation:

when iron rusts, iron molecules react with the oxygen molecules creating iron oxide aka rust.

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2 years ago