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netineya [11]
3 years ago
6

Explain why the temperature of water might increase when a solution forms

Chemistry
1 answer:
Setler79 [48]3 years ago
8 0
That is because the water would be the solvent, therefore, something is dissolved into it making it a solution. The solute increase the temperature of the solvent (water). 
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3 years ago
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Why is alchemy not considered a science
Dima020 [189]
That is because Alchemy is not based on real research and facts, but rather on magic and occultism. Sure, many things in it have been used as basics for some chemistry, but most is false and incorrect.
6 0
3 years ago
Joseph Proust showed that when elements combine to form new substances, they do so in specific mass ratios.a) trueb) false
olga55 [171]

Answer: option A) True

Explanation:

Joseph Proust is the founder of the Law of Definite proportion. This law states that two elements will always combine together to form a chemical compound and this will be in the same proportion by mass.

For Example: 2 moles of Hydrogen (H2) ALWAYS combine with 1 atom of Oxygen (O) to yield water (H2O)

So, the answer is True

3 0
3 years ago
Calculate the millimoles of solute in 1.88 L of a 0.00713 M NaCN solution. millimoles:
konstantin123 [22]

Answer:

13.4 milimoles.

Explanation:

The following data were obtained from the question:

Volume = 1.88 L

Molarity = 0.00713 M

Millimoles of NaCN =?

Next, we shall determine the number of mole NaCN in the solution. This can be obtained as follow:

Molarity = mole /Volume

Volume = 1.88 L

Molarity = 0.00713 M

Mole of NaCN =?

Molarity = mole /Volume

0.00713 = moles of NaCN /1.88

Cross multiply

Mole of NaCN = 0.00713 × 1.88

Mole of NaCN = 0.0134 mole

Finally, we shall convert 0.0134 mole to Millimoles. This can be obtained as follow:

1 mole = 1000 millimoles

Therefore,

0.0134 mole = 0.0134 × 1000

0.0134 mole = 13.4 milimoles

Therefore, the millimoles of the solute, NaCN in the solution is 13.4 milimoles

7 0
4 years ago
Which of the following places the elements in the correct order of increasing first ionization energy?
-BARSIC- [3]
Be, Mg, Ca increasing first ionization energy
4 0
3 years ago
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