C3.3

Question 1

Oxidising bs reducing agent

What is redox

Answer 1

Oxidisng agent is the one that GIVES THE OXYGEN OR GAINS THE ELECTRONS

reducing agent is the one that takes the oxygen or the one that loses electrons

Redox reactions are where oxidation and reduction happen at the same time, displacement

Question 2

Acid is
Alkali is

Strong vs weak acid

Answer 2

Acid is US trance that releases h+ ions when dissolved in water, alkali oh-

String acids fully dissociate into H+ ions, non reversible
Weak acids partially dissociate into H+ ions, reversible

Strong acids fully dissociate into h+ ions and are nit reversible, weakens partially and are reversible

Question 3

What is base and alkali

Answer 3

An alkali is a BASE THAT CAN DISSOLVE INTO WATER ,
If not then it’s just a base,
Therefore all alkalis are bases, but not all bases are alkalis

Bases are substances that neutralise acids

Question 4

How to measure pH meter 113

Answer 4

N

Question 5

Neutralisation

What is a caul reaction happening here

Answer 5

Acid + bases = salt + water

H+ + oh- = h2o

Question 6

Acids + carbonates

What happens to the salt made

Answer 6

Acid + carbonate = salt + water + co2

Effervescent realest so bubbles, salt soluble

Question 7

Acid + metal

What happens to the salt therefore what does it appear like the metal is doing

Answer 7

Acid + metal = salt + hydrogen

Hydrogen bubbles, salt is SOLUBLE therefore it appears like it disappears

Question 8

Dilute vs concentrated acids

Answer 8

Low ratio of acid to volume means dilute, high is concentrated

However for every time the concentration of h+ ions increase by 10, ph down by 1

Question 9

What pH scale is the weka acid Alaska life

Answer 9

6 and 8

Question 10

Strong and weak acids?

Answer 10

Strong= nitric sulfur ich

Weak= carbonic citric Ethanoic