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masya89 [10]
3 years ago
15

Why does potassium chloride crystallises out of solution?

Chemistry
1 answer:
kompoz [17]3 years ago
7 0

Answer:

R kelly math convinced me that macaroni noodles tastes like butt

Explanation:

R kelly - way of thinking

12 = 16

13 = 18

5 = 42

3 = 21

11 = 67

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posledela

Answer:

C I think from what I did to solve!!

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3 years ago
Which energy resource causes the greatest waste disposal concerns?
Alex_Xolod [135]
Coal produces more pollution than any other energy source
7 0
3 years ago
One mole of which of these compounds contains two moles of hydrogen atoms?NaOH H2S NH3 CH4
Nookie1986 [14]

Answer:

H2S.

Explanation:

That would be H2S,  hydrogen sulphide. (Smells like bad eggs!).

8 0
3 years ago
4.65 L of nitrogen at standard pressure is compressed into a 0.480 L container. What is the new pressure in kPa?
Semenov [28]
Assuming that nitrogen gas is ideal, we can use the equation PV = nRT to relate first conditions to the second condition. At constant temperature, pressure and volume are indirectly related as follows:

P = k / V

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P1V1 = P2V2
P2 = 101.325 ( 4.65 ) / .480 = 981.586 kPa
6 0
4 years ago
Using today's current price of gold - $1838.80 per troy ounce, how much are 5.17x1017 atoms of gold worth? (Hint: You will have
Zepler [3.9K]

Answer:

0.010 $.

Explanation:

Hello!

In this case, since 1 troy ounce equals 31.1 grams, we can compute the price of gold per gram first:

1,838.80\frac{\$}{try\ ounce} * \frac{1try\ ounce}{31.1g}  = 59.1\frac{\$}{g}

Now, we need to compute the grams of copper in 5.17 x10¹⁷ atoms via the Avogadro's number:

m=5.17x10^{17}atomsAu*\frac{197.0gAu}{6.022x10^{23}atomsAu} \\\\m=1.69x10^{-4}g

Thus, the price is:

\$ = 59.1\frac{\$}{g}*1.69x10^{-4}g \\\\\$ =0.010\$

Best regards!

7 0
4 years ago
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