Question

Укажите способ разделения смесей: а) вода и сахар. б) медные и железные опилки в) подсолнечное масло и вода г) вода и соль д) вода и глина е) мел и соль ж) песок и сахар з) вода и газ

Answer 1

А)выпаривание
б)намагничивание
в)отстаивание
г)выпаривание
д)фильтрование
е)фильтрование и выпаривание
ж)фильтрование и выпаривание

Answer 2

Separation of Mixtures

a) Water and Sugar: To separate water and sugar, one common method is evaporation. Water can be evaporated, leaving the sugar behind. Another method is crystallization, where the water is evaporated, and the sugar crystallizes out of the solution.

b) Copper and Iron Filings: The separation of copper and iron filings can be achieved through magnetic separation. Iron is magnetic, so a magnet can be used to attract the iron filings, leaving the copper behind.

c) Sunflower Oil and Water: To separate sunflower oil and water, decantation can be used. Sunflower oil is less dense than water, so it can be poured off, leaving the water behind.

d) Water and Salt: The separation of water and salt can be accomplished through distillation. When the saltwater solution is heated, the water evaporates, leaving the salt behind. The water vapor is then condensed back into liquid water.

e) Chalk and Salt: Chalk and salt can be separated by dissolving and filtration. Since salt is soluble in water and chalk is not, the mixture can be dissolved in water, and then the chalk can be filtered out, leaving the salt in the solution.

f) Sand and Sugar: The separation of sand and sugar can be achieved through sieving. Since sugar particles are smaller than sand particles, the sugar can pass through the sieve, leaving the sand behind.

g) Water and Gas: The separation of water and gas can be accomplished through bubbling. When gas is bubbled through water, the gas will dissolve in the water, allowing the two substances to be separated.

These methods provide effective ways to separate various mixtures based on the properties of the substances involved.