Solutions And Mehanical Mixtures

Question 1

What does filtration mean?

Answer 1

Filter paper allows the soluble solute to pass through and the insoluble solid is left behind

Question 2

What does soluble mean?

Answer 2

Solids that can dissolve in a solvent

Question 3

What are separation techniques used for?

Answer 3

To separate mixtures

Question 4

What does sedimentation do?

Answer 4

Allows large pieces of insoluble substances to settle out of a mixture ( sink to the bottom)

Question 5

What’s a mixture?

Answer 5

Combination of 2 or more substances that are not chemically combined

Question 6

What are 3 properties that all mixtures have?

Answer 6

1. Substances in a mixture Keep its identity (pizza)
2. Mixtures can be physically separated (salt water, water changes to gas, salt stays behind)
3. The components of a mixture do not have a definite ratio (air, sometimes has more water vapor than other days)

Question 7

What are the 3 types of mixtures?

Answer 7

Solutions, suspensions, colloids

Question 8

What is a solution?

Answer 8

A single substance that is composed particles of 2 or more substances that can spread out evenly

Question 9

Why are solutions also called homogenous mixtures?

Answer 9

Same appearance and properties throughout the mixture

Question 10

What does dissolving mean?

Answer 10

Particles of substances separate and spread evenly throughout a mixture

Question 11

What’s a solute?

Answer 11

Substance that is dissolved

Question 12

What’s a solvent?

Answer 12

Substance in which the solute is dissolved

Question 13

What is a suspension?

Answer 13

Particles of a material spread out throughout a liquid or gas but are large enough that they settle out

Question 14

Why are suspensions also called heterogeneous mixtures?

Answer 14

Different components are easily seen

Question 15

What is a colloid?

Answer 15

Particles In a mixture disperse throughout but are not heavy enough to settle out

Question 16

What does insoluble mean?

Answer 16

Unable to dissolve, forms a mixture that is not a homogenous (solution)

Question 17

All substance are made of what?

Answer 17

Matter

Question 18

When the matter made up of one type of atom we call it what?

Answer 18

Pure element

Question 19

When the matter is made up of two or more types of atoms we call this what?

Answer 19

Pure compound

Question 20

When a substance is made up of only one type of mater we call it a?
When the matter is made up of two or more types of matter we call it a?

Answer 20

1. Pure substance

2. .Mixture

Question 21

What is evaporation used for?

Answer 21

Used to separate a solid solute from a solvent

Question 22

When a substance is made up of two or more types of matter that you can visually identify as being different, this is called what?

Answer 22

Mechanical mixture

Question 23

When the matter is made up of two or more different types of matter that u can’t visually identify, this is called what?

Answer 23

Solution

Question 24

What units of measurement is used to measure solubility?

Answer 24

Gram of solute per unit volume of solvent

Question 25

What factor can effect the solubility of a substance?

Answer 25

Temperature

Question 26

What is a saturated solution?

Answer 26

Solution that will not dissolve any more solute at a given temp. Or pressure