Unit A - Mix & Flow of Matter

Question 1

What is solubility?

Answer 1

the amount of solute that dissolves in a given solvent at a given temperature

Question 2

What is a solute?

Answer 2

A substance that dissolves into a solvent

Question 3

What is a solvent?

Answer 3

the substance that dissolves the solute

Question 4

What substance is known as the universal solvent?

Answer 4

Water

Question 5

What does it mean to dilute a substanvce?

Answer 5

to add more solvent to a mixture

Question 6

What does it mean to concentrate a substance?

Answer 6

to add more solute to a mixture

Question 7

What is a concentration point?

Answer 7

the amount of solute dissolved in a specific amount of solvent

Question 8

What is a saturated solution?

Answer 8

no more solute can be dissolved at that temperture

Question 9

What is an unsaturated solution?

Answer 9

more solute can be dissolved at that temperature

Question 10

What is a supersaturated solution?

Answer 10

a solution that contains more solute than it can take due to the cooling of a once hot solution

Question 11

What is thermal pollution?

Answer 11

warm waste water from power plants and industries that enter lakes and streams, reducing the amount of oxygen that can remain dissolved in the water

Question 12

What is a fluid?

Answer 12

liquids or gases that flow and have no definite shape

Question 13

What is density?

Answer 13

the amount of matter per unit volume

Question 14

What is the formula to calculate density?

Answer 14

D = m/V

Question 15

What is Archimedes principle?

Answer 15

the physical law that states that an object is pushed upward by a force equal to the weight of fluid it displaces

Question 16

What is a buoyant force?

Answer 16

an upward force created by the fluid that is displaced by an object

Question 17

What does it mean to displace something?

Answer 17

to push it out of the way

Question 18

What is mass?

Answer 18

the amount of matter in an object

Question 19

What unit is mass measured in?

Answer 19

Grams (g)

Question 20

What is the symbol for mass?

Answer 20

m

Question 21

What is volume?

Answer 21

the amount of space an object takes up

Question 22

What unit is volume measured in?

Answer 22

cm3 for solids, ml for fluids

Question 23

What is the symbol for volume?

Answer 23

V

Question 24

What is weight?

Answer 24

the downward force of gravity on an object

Question 25

What is the symbol for density?

Answer 25

D

Question 26

What is the unit for density?

Answer 26

g/cm3 for solids, g/ml for fluids

Question 27

Matter is made up of tiny particles called ________ and ________

Answer 27

atoms, molecules

Question 28

Particles of matter are in constant ________

Answer 28

motion

Question 29

Particles at a ________ temperature move faster than particles at a ________ temperature

Answer 29

higher, lower

Question 30

Each substance has ________ particles that are ________ from the particles of other substances

Answer 30

unique, different

Question 31

Particles of matter are held together by ________, ________, ________ forces

Answer 31

strong, attractive, electric

Question 32

What is viscosity?

Answer 32

the measure of a fluid’s response to flow