Brainscape's Knowledge GenomeTM

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


See full index

OCR A A level Chemistry > 3.1 > Flashcards

3.1 Flashcards

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

Test for Ammonium reagent?

A

NaOH

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

Equation for ammonium and sodium hydroxide?

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

Colour change when testing for Ammonium?

A

Use damp litmus paper- red to blue

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

Test for Sulfate reagent?

A

BaCl or other SOLUBLE Ba

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

Positive result for sulfate ion?

A

White ppt. Beware false positives with carbonate ions.

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

Equation for Sufate ion test?

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

Test for carbonate reagent?

A

HCl or other acid

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

Positive observation for carbonate?

A

Fizzing

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

What’s a real world use for carbonate testing?

A

HCl used to test for carbonates in rock samples

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

Write and equation testing for carbonate

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

Reagent for halide ions?

A

Silver nitrate, AgNO3

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

What are halide ions?

A

Cl-,Br-,I-

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

Chloride plus silver nitrate observation?

A

White ppt

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

Bromide plus silver nitrate observation?

A

Creat ppt

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

Iodide plus silver nitrate observation?

A

Yellow ppt

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

Silver nitrate plus halide equation?

A
17
Q

halide and silver nitrate precipitate: what happens when adding dilute ammonia? What about concentrated ammonia?

A
18
Q

Define first ionisation energy

A

Energy needed to remove one mole of electrons from one mole of gaseous atoms

19
Q

Which factors affect ionisation energy?

A
  • HIgher nuclear charge = higher IE
  • bigger atomic radius = lower IE
  • more electron shells = lower IE
20
Q

Define disproportionation

A

A reaction in which the same element is both reduced and oxidised

21
Q

What are the benefits and risks of chlorine water treatment?

A
  • Benefits-Kills harmful bacteria
  • Risk- Chlorine is toxic
  • Risk- formation of chlorinated hydrocarbons
22
Q

define oxidising agent

A

The reactant causing the oxidation (gains electrons)

23
Q

Define reducing agent

A

Reactant causing the reduction (gains electrons)

24
Q

:(

A

:(

OCR A A level Chemistry (21 decks)

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