Brainscape's Knowledge GenomeTM

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


See full index

Chemistry > 3.4 - Atmosphere and Acids > Flashcards

3.4 - Atmosphere and Acids Flashcards

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

Methyl Orange acidic colour

A

Red

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

Methyl Orange neutral colour

A

yellow

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

Methyl Orange alkaline colour

A

Yellow

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

Phenolphthalein acidic colour

A

colourless

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

Phenolphthalein neutral colour

A

colourless

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

Phenolphthalein alkaline colour

A

Pink

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

Red Litmus acidic colour

A

red

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

Red Litmus neutral colour

A

red

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

Red Litmus alkaline colour

A

blue

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

Blue Litmus acidic colour

A

red

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

Blue Litmus neutral colour

A

blue

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

Blue Litmus alkaline colour

A

blue

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

pH 0-2 colour

A

red

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

pH 3-4 colour

A

orange

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

pH 5-6 colour

A

yellow

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

pH 7 colour

A

green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

pH 8-10 colour

A

light blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

pH 11-13 colour

A

dark blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

pH 14 colour

A

purple

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Percentage of nitrogen in air

A

78

21
Q

Percentage of oxygen in air

A

21

22
Q

Percentage of argon in air

A

0.96

23
Q

Percentage of carbon dioxide in air

A

0.04

24
Q

Equation for the percentage of oxygen in the air?

A

% O2 = initial vol - final vol / 100 x100

25
Q

Reasons that % of O2 wasn’t 21

A
  • metal not heated for long enough
  • leaky apparatus
26
Q

What is element combustion

A

Element combustion is when an element reacts with oxygen to produce an oxide.

Element + Oxygen → Element oxide

26
Q

What does a metal reacted with oxygen produce?

A

metal oxide

26
Q

What does a non-metal reacted with oxygen produce?

A

non-metal dioxide

27
Q

What are the three important combustions

A

1) 2Mg(s) + O2(g) → 2MgO(s)
2) S(s) + O2(g) → SO2(g)
3) 2H2(g) + O2(g) → 2H2O(l)

28
Q

Observation of the reaction between magnesium and oxygen?

A
  • bright white light
  • white powder formed
29
Q

Observation of the reaction between sulfur and oxygen?

A

blue flame

30
Q

Observation of the reaction between hydrogen and oxygen?

A

squeaky pop

31
Q

Charge on iron (II)

A

2+

32
Q

Charge on iron (III)

A

3+

33
Q

Charge on copper

A

2+

34
Q

Charge on silver

A

1+

35
Q

Charge on zinc

A

2+

36
Q

Charge on lead

A

2+

37
Q

What type of solution do metal oxides form?

A

Alkaline

38
Q

What type of solution do non- metal dioxides form?

A

acidic

39
Q

What steps could you take to find out whether an element was a metal or non-metal?

A
  1. Combust it in oxygen
  2. Dissolve the oxide formed
  3. Check the pH of the solution with an indicator
40
Q

Definition of an acid

A

H+ donor

41
Q

Definition of an alkali

A

OH- donor

42
Q

Definition of a base

A

H+ acceptor

43
Q

What do have to do when multiplying polyatomic ions in chemical formulae?

A

USE BRACKETS

44
Q

acid + base equation

A

Acid + Base → Salt + Water

45
Q

Observation from an acid and base reaction?

A

The base disappears

46
Q

acid + carbonate equation

A

Acid + Carbonate → Salt + Water + Carbon dioxide

47
Q

Observations from acid and carbonate reaction?

A
  • the carbonate disappears
  • there is fizzing

Chemistry (16 decks)

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