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GREYUIT [131]
2 years ago
13

PLS HELP ME

Chemistry
1 answer:
DIA [1.3K]2 years ago
4 0

Number of men required to stand on top of each other to reach moon from earth are :

\boxed{ \boxed{ \:  \:  \:  \:  \:  \:  \: 210320000 \:  \:  \:  \:  \:   \: \: }}

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Suppose the gas resulting from the sublimation of 1.00 g carbon dioxide is collected over water at 25.0◦c into a 1.00 l containe
jeyben [28]

Answer:

0.55 atm

Explanation:

First of all, we need to calculate the number of moles corresponding to 1.00 g of carbon dioxide. This is given by

n=\frac{m}{M_m}

where

m = 1.00 g is the mass of the gas

Mm = 44.0 g/mol is the molar mass of the gas

Substituting,

n=\frac{1.00 g}{44.0 g/mol}=0.0227 mol

Now we can find the pressure of the gas by using the ideal gas law:

pV=nRT

where

p is the gas pressure

V = 1.00 L is the volume

n = 0.0227 mol is the number of moles

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

T = 25.0 C + 273 = 298 K is the temperature of the gas

Solving the formula for p, we find

p=\frac{nRT}{V}=\frac{(0.0227 mol)(0.082 L/(atm K mol))(298 K)}{1.00 L}=0.55 atm

8 0
3 years ago
Name the hardest artificial substance known?
blagie [28]
The hardest material is diamond. The hardest artificial substance would wurtzite boron nitride. That's basically just man-made diamonds.
4 0
3 years ago
Read 2 more answers
onic compounds can conduct electricity when dissolved in water or melted, because A. they have no ions to contribute to the solu
Minchanka [31]
Abstract:

Ionic compounds can only conduct electricity if their ions are free to move. So ionic compounds do not conduct electricity when they are solid, but they do conduct electricity when they are dissolved in water or when they are melted<span>.

Answer:
</span>Ionic compounds can conduct electricity when dissolved in water or melted because <span>the ions are free to move.

Answer choice: </span><span>C. the ions are free to move.</span>
8 0
3 years ago
How do I find the hydrated formula?
Nady [450]

Answer:

In order to determine the formula of the hydrate, [Anhydrous Solid⋅xH2O], the number of moles of water per mole of anhydrous solid (x) will be calculated by dividing the number of moles of water by the number of moles of the anhydrous solid (Equation

Explanation:

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3 years ago
I'm so boredddd<br> answer if u wanna be friends
horrorfan [7]

Answer:

sure me no have friends either

mega nut

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3 years ago
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