UNIT 2 - Everyday Consumer Products Flashcards

1
Q

Describe alcohols:

A

-contain the hydroxyl (-OH) functional group
-have names ending in ‘-ol’
-saturated straight chains have the general formula (CnH2n+1OH)
-Have low boiling points and evaporate easily
-Are very effective solvents
-Are highly flammable and burn with a clear blue flame to produce CO2 and water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a physical property?

A

Something that can be observed or measured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a boiling point?

A

The temperature at which a liquid turns into a gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is miscibility?

A

The ability of one liquid to mix with (dissolve in) another liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are methanol, ethanol, and propanol in water?

A

They are miscible in water. Thereafter, the solubility decreases as size increases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a chemical property?

A

It is a property that becomes evident during a chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is an exothermic reaction?

A

It is a reaction in which energy is released into the surroundings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is an endothermic reaction?

A

It is a reaction in which energy is absorbed from the surroundings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is combustion?

A

The burning of a fuel in the presence of oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What do alkanes and alcohols release when they undergo combustion?

A

They release vast amounts of energy, they are excellent fuels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the equation for calculating the energy released in a reaction?

A

Eh = cm ΔT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the value of ‘c’ in an energy calculation for water?

A

4.18 (ALWAYS)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly