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Softa [21]
3 years ago
9

When seawater freezeswhat happens to the salt?

Chemistry
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

B

Explanation:

pure water can accumulate to form ice while pushing the salt particles to be accumulated in the liquid part, because salt particles are more favorable to stay in liquid than ice

so there can still be some salt in the ice between the bonds

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620 mL of nitrogen at standard pressure is compressed into a 480 mL container. What is the new pressure in kPa?
bulgar [2K]

Answer:

c. 131 kPa

Explanation:

Hello!

In this case, since the relationship between volume and pressure is inversely proportional, based on the Boyle's law:

P_1V_1=P_2V_2

Considering that the standard pressure is 101.325 kPa, we can compute the final pressure as shown below:

P_2=\frac{P_1V_1}{V_2}=\frac{620mL*101.325kPa}{480mL}\\\\P_2=131kPa

Therefore, the answer is c. 131 kPa .

Best regards!!

7 0
2 years ago
If the theoretical yield of RX is 56.0 g , what is the percent yield ?
maks197457 [2]
the complete question in attached figure

Let 
x------------------- >  actual yield
y------------------- > theoretical yield 
z------------------- > percent yield
we have that
z=x/y

we know
x=47 g
y=56 g

therefore

z=47/56=0.839 ---------------- > 83.9%

the answer is the option C 83.9%

4 0
3 years ago
What is the hardest metal?
marissa [1.9K]

Answer:

i believe it is titanium.

Explanation:

4 0
3 years ago
Read 2 more answers
A piece of iron can change in different ways. How is iron bending different from iron rusting
fenix001 [56]
Iron bending is just a physical change because the iron has only changed shape but there is no new substance. Iron rusting is a chemical change because there is a new substance which is rust.
7 0
4 years ago
Which of the following statements is true?
dybincka [34]

Answer:C

Explanation:

A process is called spontaneous if the process takes place on its own without the intervention of external factors.

The spontaneous processes are generally quick with observable rates of reaction.But processes can be spontaneous even with negligible rates of reaction.

Spontaneity of reactions depend on temperature.

This is because spontaneity is measured by gibbs energy or enthalpy.

Both of these measures are dependent on temperature.

So,temperature affects spontaneity.

7 0
3 years ago
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