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3 years ago

Help out please I really don’t understand these

Chemistry

1 answer:

gavmur [86]3 years ago

4 0

In English

7. Name the elements found in nature in diatomatic form.

8. What is the difference between double and triple single link?

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What is the pH of a 0.025 M [OH] solution?

Debora [2.8K]

The answer is 12.4.I think its correct answer.

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3 years ago

Pa help po science po

mamaluj [8]

Answer:

1. molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere

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4. C

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2 years ago

Which is and element <br> A) Salad<br> B) Sugar<br> C) Water <br> D) Potassium

Semenov [28]

Answer:

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3 years ago

A gas has a volume of 62.65L at O degrees Celsius and 1 atm. At what temperature in Celsius would the volume of the gas be 78.31

Anastaziya [24]

Answer:

The volume of the gas will be 78.31 L at 1.7 °C.

Explanation:

We can find the temperature of the gas by the ideal gas law equation:

$PV = nRT$

Where:

n: is the number of moles

V: is the volume

T: is the temperature

R: is the gas constant = 0.082 L*atm/(K*mol)

From the initial we can find the number of moles:

$n = \frac{P_{1}V_{1}}{RT_{1}} = \frac{1 atm*62.65 L}{(0.082 L*atm/K*mol)*(0 + 273)K} = 2.80 moles$

Now, we can find the temperature with the final conditions:

$T_{2} = \frac{P_{2}V_{2}}{nR} = \frac{612.0 mmHg*\frac{1 atm}{760 mmHg}*78.31 L}{2.80 moles*0.082 L*atm/(K*mol)} = 274.7 K$

The temperature in Celsius is:

$T_{2} = 274.7 - 273 = 1.7 ^{\circ} C$

Therefore, the volume of the gas will be 78.31 L at 1.7 °C.

I hope it helps you!

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3 years ago

What Do You Think It Means To Have a Balanced Or Unbalanced Chemical Equation?

Hatshy [7]

Answer:

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.

Explanation:

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3 years ago