What are the key differences between solutions and mechanical mixtures? Give two examples of each. -Science

Chemistry

1 answer:

BlackZzzverrR [31]3 years ago

5 0

Answer:

A mixture is two or more substances combined. There are no chemical reactions involved, so no new substances are made. Mixtures can often be separated by physical means. For example, a mixture of sand and water could be separated by filtration. A mixture of sand and iron filings could be separated magnetically.

A solution is one kind of mixture. It’s commonly the combination of a liquid and a solid, so that the particles of the solid mix with those of the liquid so that they can’t be separated by filtration. However solutions may be separated in other ways. For example, in salt water the salt and the water can be separated by distillation.

Explanation:

You might be interested in

NEED HELP, HURRY PLS Create a superhero out of the element iron, what are its powers and his sidekick ( an element that works we

laila [671]

Answer:

How about......................IRON MAN

Explanation:

3 0

4 years ago

The__ contains all the elements l, arranged according to similarities in their properties

Inga [223]

It is the periodic table
* if helped you in anyway please be sure to leave a thanks :)

6 0

3 years ago

How many moles of potassium are contained in 449 g of potassium?.

stira [4]

Answer:

12.8 moles of potassium

Explanation:

449 g/39.10 g = 12.76 moles

First, you divide 449 g of potassium by its molar mass which is 39.10 g. Then you will get your answer, but you need to round it to 3 numbers because of Sig Figs, which makes it 12.8 moles.

7 0

2 years ago

Calculate the vapor pressure (in torr) at 298 K in a solution prepared by dissolving 38.5 g of the non-volatile non-electrolye u

Free_Kalibri [48]

Answer: The vapor pressure of methanol solution at 298K is 107.12 torr

Explanation:

As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.

The formula for relative lowering of vapor pressure will be,

$\frac{p^o-p_s}{p^o}=i\times x_2$