Solutions

Question 1

What are the properties of a solution?

Answer 1

• homogenous mixture of two or more substances e.g. Sugar and water
• macroscopic properties do not vary within the sample
• components cannot be separated by filtration, but can be separating by things like boiling
• no components are large enough to scatter visible life

Question 2

The substance that is more plentiful in a solution

Answer 2

Solvent

Question 3

The substance that is less plentiful in a solution

Answer 3

Solute

Question 4

When the solvent has dissolved the maximum amount of solute possible at a certain temperature, and some solid particles remain undissolved

Answer 4

Saturated solutions

Question 5

Saturated solutions are an _______ system where solid particles continually dissolve in the solvent and dissolved particles fall out of solutions

Answer 5

Equilibrium

Question 6

Solutions soluble in all properties, never become saturated

Answer 6

Miscible solutions

Question 7

How can intermolecular forces cause the volume of a solutions to differ from the sum of the volume before mixing?

Answer 7

Strong IMF’s can pull molecules together and decrease volume

Question 8

Always infinitely soluble in each other

Answer 8

Gasses

Question 9

Solutions formed by melting, mixing, and solidifying

Answer 9

Solid-solid

Question 10

How does steel differ from iron?

Answer 10

Carbon fills some spaces in iron ions

Question 11

Iron lacks ___________ bonds

Answer 11

Directional

Question 12

In which one elements atoms fill up the spaces of another molecules molecule

Answer 12

Interstitial alloy

Question 13

Alloy where atoms from one element are substituted for others

Answer 13

Substitutional alloy

Question 14

What is the equation for molarity?

Answer 14

M=(moles of solute)/(liters of solutions)

Question 15

Molarity ______ change with temperature

Answer 15

Can

Question 16

Mole fractions __________ change with temperature

Answer 16

Do not

Question 17

What factors affect solubility?

Answer 17

• structure
• temperature
• pressure

Question 18

The mass of solute that dissolves in a saturated solution composed of a specific mass of solvent at a specific temperature

Answer 18

Solubility

Question 19

The solubility of most solids increases as temperature increase, as the process is usually _________________

Answer 19

Endothermic

Question 20

What are the properties of a suspension or mechanical mixture?

Answer 20

• heterogenous mixture of two or ore substances, e.g sand and water
• macroscopic properties are different at different locations within the sample
• in some cases, components can be separated through filtration

Question 21

Identify four properties that change when carbon is added to pure iron in order to steel?

Answer 21

• more rigid metallic bonds
• less malleable
• less docile
• increased density