Topic 5 - Making Salts/Chemical Changes

Question 1

What is the name for adding oxygen to a metal?

Answer 1

Oxidisation.

Question 2

What is a half equation?

Answer 2

An equation showing the changes for one of the elements in a reaction.

Question 3

What is the half equation of Iron (II) becoming ionised?

Answer 3

Fe —> Fe2+ + 2e-

Question 4

What is the equation linking metal, acid, salts and hydrogen?

Answer 4

Metal + acid —> salts + hydrogen.

Question 5

What is the equation linking acids, bases, salts and water?

Answer 5

Acid + base —> a salt + water

Question 6

What is the equation linking acids, alkalis, a salt and water?

Answer 6

Acid + Alkali —> A salt + water.

Question 7

What is the equation linking a carbonate, a salt, an acid, water and carbon dioxide?

Answer 7

An acid + A carbonate —> a salt + water + carbon dioxide.

Question 8

What is the definition of a strong acid?

Answer 8

An acid that ionises 100% of its Hydrogen atoms.

Question 9

What are three examples of strong acid?

Answer 9

Hydrochloric acid, nitric acid and sulfuric acid.

Question 10

What are some examples of weak acids?

Answer 10

Ethanoic acid, citric acid and carbonic acid.