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2 years ago

Which chemical element has the shortest name?

Chemistry

2 answers:

larisa86 [58]2 years ago

5 0

Tin would be the right answer

frutty [35]2 years ago

3 0

Answer:

Tin

Explanation:

Tin is the chemical element which has the shortest name. It is a metallic element with the chemical symbol Sn which comes from the latin word stannum.

hope this helps!! :) :) :) (please give me brainliest!!)

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Calculate the density in g/l of co2 gas at 27 Celsius and 0.500 atm pressure

lesya692 [45]

Answer:

The density of CO₂ gas at 27 Celsius and 0.500 atm is 0.89 $\frac{grams}{L}$

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P*V = n*R*T Equation (A)

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas.

Density allows you to measure the amount of mass in a given volume of a substance. So density is defined as the quotient between the mass of a body and the volume it occupies:

$density=\frac{mass}{volume}$

Being the molar mass of a substance the mass contained in one mole of said substance, the number of moles can be expressed as:

$n=\frac{mass}{molar mass}$ Equation (B)

Replacing in Equation (A):

P*V= $\frac{mass}{molar mass}$ *R*T

Solving to get the definition of density expressed in the equation, you get:

$density=\frac{mass}{V} =\frac{P*molar mass}{R*T}$

Being:

P=0.500 atm
Molar mass CO₂= 44 g/mole

R= 0.082 $\frac{atm*L}{mole*K}$

T= 27 C= 300 K (being 0 C=273 K)

and replacing:

$density=\frac{mass}{V} =\frac{0.500 atm*44 \frac{g}{mole} }{0.082 \frac{atm*L}{mole*K} *300 K}$

you get:

density= 0.89 $\frac{grams}{L}$

The density of CO₂ gas at 27 Celsius and 0.500 atm is 0.89 $\frac{grams}{L}$

3 0

3 years ago

I'm sad to announce that this will most likely be my last day on brainly until next year, and to all the friends I've made on he

ohaa [14]

Answer:

I know I never met you, but I'll miss you too. I hope you have a nice life. =)

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2 years ago

PLEASE HURRY IM TIMED Which of the following are examples of physical changes? (Select all that apply.)

stich3 [128]

Answer:

Explanation:

tearing a piece of paper

crushing a soda can

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2 years ago

Describe how each way to separate a mixture works Magnetic attraction: Evaporation: Filtration: Distillation:

jeka94

Answer:

Evaporation is great for separating a mixture (solution) of a soluble solid and a solvent. The process involves heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue. ... This method is best for separating a liquid from a solution.

Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Due to the magnets, magnetic particles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an ore concentrate).

Explanation:

That's your answer.

5 0

2 years ago

49.Which of the following statements regarding chemical equilibrium is true?

crimeas [40]

A asystem at equilibrium stops

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2 years ago