Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry Trilogy > Chapter 5 > Flashcards

Chapter 5 Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

What is the test for carbon dioxide?

A

It turns limewater cloudy

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

A reaction between an acid and an alkali is called?

A

Neutralization

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

What are the products of a reaction between an acid and a metal oxide or metal hydroxide?

A

A salt and water

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

What are the products of a reaction between an acid and a metal?

A

A salt and hydrogen

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

How do you name a salt?

A

Put the metal first and then the acid ending

  • sulfuric acid gives metal sulphates
  • nitric acid gives metal nitrates
  • hydrochloric acid gives metal chlorides
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do you define an alkali?

A

By their OH- ions

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

How do you define an acid?

A

By their H+ ions

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

What is the ionic equation for neutralisation?

A

H+ + OH- ———-> H2O

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

What are the products of a reaction between an acid and a metal carbonate?

A

A salt and water and carbon dioxide

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

Name and give the formula of three acids.

A
  • sulfuric acid (H2SO4)
  • nitric acid (HNO3)
  • hydrochloric acid (HCl)

Note: put your hand over the H and what is left is the ending to your salt

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

pH is a measure of……

A

… the concentration of H+ ions

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

Acids have a pH………

A

below 7 - yellow/red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Alkalis have a pH…………..

A

above 7 - blue/purple

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Why is a pH meter better than universal indicator to measure the pH of a substance?

A

It is more accurate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the pH of a neutral substance?

A

7 - green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are indicators?

A

A substance that changes colour to show the point of neutralisation or the pH of a substance

e.g. universal indicator, litmus paper

17
Q

What is a displacement reaction?

A

It is a reaction where a more reactive metal displaces a less reactive metal

e.g zinc + iron oxide —–> zinc oxide + iron

18
Q

What is the reactivity series?

A

It is the order in which metals are placed based on their reactivity. More reactive metals are placed at the top.

19
Q

Definition of an acid.

A

A substance that can attack metal, clothing or the skin. Has a pH of less than 7. They are proton (H+ ion) donators.

20
Q

What is a burette?

A

A long glass tube with a tap at one end and markings to show volumes of liquid. Used to add precisely known amounts of liquids to a solution in a conical flask below it. It is used to measure variable accurate volumes of liquids.

21
Q

What do we mean by the term precipitate?

A

An insoluble solid formed by a reaction taking place in solution. (Some salts are insoluble)

22
Q

What is a pipette?

A

A tube used to measure a fixed accurate volume of liquid.

23
Q

What is an ore?

A

Rock which contains enough metal to make it economically worthwhile to extract the metal.

24
Q

What is a weak acid? (H)

A

Acids that do not deionise completely so only produce a few H+ ions

25
Q

What is a strong acid? (H)

A

Acids that deionise completely to produce H+ ions

26
Q

What is a dependent variable?

A

One that you measure

27
Q

What is a control variable?

A

One that you must keep the same

28
Q

What is an independent variable?

A

One that you change

29
Q

What does valid mean?

A

You have used a suitable method and equipment to get an answer (data) to your question

30
Q

What does reproducible mean?

A

A measurement is reproducible if SOMEONE else can do the experiment and get the same results

31
Q

What does repeatable mean?

A

A measurement is repeatable if YOU can do the experiment again and get the same results

32
Q

What is qualitative date?

A

Descriptive date such as eye colour

33
Q

What is quantitative data?

A

Data that is numerical e.g. a measurement

34
Q

What is thermal decomposition?

A

The breakdown of a compound by heating

35
Q

What is the charge on these polyatomic ions?

  • Hydroxide ion OH
  • Sulphate ion SO4
  • Nitrate ion NO3
  • Carbonate ion CO3
A
  • OH-
  • SO4 2-
  • NO3 -
  • CO3 2-
36
Q

Why is a pH curve used?

A

To give a more accurate measure of the exact volumes of acids and alkalis need for neutralisation

37
Q

What is the name of this piece of equipment?

A

Conical flask

38
Q

What is the name of this piece of equipment?

A

volumetric flask

39
Q

What is the meniscu?

A

The curved upper surface of a liquid in a tube or cylinder

Remember we always measure from the bottom of the meniscus

Chemistry Trilogy (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions