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aliya0001 [1]
2 years ago
8

Which phase of matter has a fixed volume, but variable shape?

Chemistry
2 answers:
Pani-rosa [81]2 years ago
7 0

Answer: liquid

Explanation: a liquid has a volume that does not change (unless you add more or less liquid to it, obviously) but its shape can change depending on the container you use.

Think, if you put a liter of water into a bucket, it will still be a liter of water if you pour it into a water bottle. The only thing different is that the shape of the liquid changes.

Nookie1986 [14]2 years ago
5 0

Answer:

b.)  liquid

Explanation:

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In an experiment, 2.54 grams of copper completely reacts with sulfur, producing 3.18 grams of copper(I) sulfide.
kozerog [31]

Answer:

               0.64 g of S

Solution:

               The balance chemical equation is as follow,

                                           2 Cu + S ----> Cu₂S

According to equation,

                        127 g (2 mole) Cu produces = 159 g (1 mole) of Cu₂S

So,

                                 2.54 g Cu will produce = X g of Cu₂S

Solving for X,

                     X = (2.54 g * 159 g) / 127 g

                     X = 3.18 g of Cu₂S

Now, it is confirmed that the reaction is 100% ideal. Therefore,

As,

                       127 g (2 mole) Cu required = 32 g (1 mole) of S

So,

                                2.54 g Cu will require = X g of S

Solving for X,

                      X = (2.54 g * 32 g) / 127 g

                      X = 0.64 g of S

5 0
3 years ago
Read 2 more answers
Which of the following sulfides are insoluble? Select all that apply. Select all that apply. A. sodium sulfide lead(II) B. sulfi
Yuri [45]

Answer:

b.

Explanation:

4 0
3 years ago
What kind of chemical bonds are represented by the product in the following diagram?
katovenus [111]
The chemical bonds in CH4 are all single bonds. C only can bond 4 times because it needs 8 electrons in it's outer shell and only has four right now. The bonds represented are all single bonds because there are two electrons present on each side of the carbon. Two electrons, in this case, equals one bond.
4 0
3 years ago
The enthalpy of a pure liquid at 75oC is 100 J/mol. The enthalpy of the pure vapor of that substance at 75oC is 1000 J/mol. What
pentagon [3]

Answer:

900 J/mol

Explanation:

Data provided:

Enthalpy of the pure liquid at 75° C = 100 J/mol

Enthalpy of the pure vapor at 75° C = 1000 J/mol

Now,

the heat of vaporization is the the change in enthalpy from the liquid state to the vapor stage.

Thus, mathematically,

The heat of vaporization at 75° C

=  Enthalpy of the pure vapor at 75° C - Enthalpy of the pure liquid at 75° C

on substituting the values, we get

The heat of vaporization at 75° C = 1000 J/mol - 100 J/mol

or

The heat of vaporization at 75° C = 900 J/mol

8 0
3 years ago
According to the law of conservation of matter, which statement about chemical reactions is true?
Yanka [14]

Atoms cannot be created or destroyed by chemical reactions. They just have a some bonds rearranged is all.


3 0
2 years ago
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