4.1 - Acids, Bases and Neutralisation

Question 1

When an acid is added to water what ion is released into the solution?

Answer 1

Hydrogen

Question 2

Define acid

Answer 2

Proton donor

Question 3

Define base

Answer 3

Proton acceptor

Question 4

Which base is used to treat acid ingestion?

Answer 4

Magnesium hydroxide

Question 5

What are alkalis?

Answer 5

Bases that can dissolve in water to form aqueous hydroxide ions

Question 6

What are amphoteric substances?

Answer 6

Substances that can act as acids and bases

Question 7

What is formed when acids react with carbonate?

Answer 7

Salt, carbon dioxide and water

Question 8

What is a salt?

Answer 8

Compound that is formed when h+ of an ion is replaced by a metal ion or positive ion

Question 9

What is formed when acids react with metal oxide?

Answer 9

Salt and water

Question 10

What is formed when an acid reacts with alkali ?

Answer 10

Salt and water

Question 11

What is formed when acids react with metal?

Answer 11

Salt and hydrogen

Question 12

What are hydrated crystals?

Answer 12

A crystalline structure containing water

Question 13

What does anhydrous crystals mean?

Answer 13

Crystalline form that contains no water

Question 14

What does a dot formula indicate?

Answer 14

The amount of water present In a crystalline structure

Question 15

What is the colour of methyl orange in an acid, base and at end point?

Answer 15

• acid - red
• base - yellow
• end point - orange

Question 16

Define a strong acid

Answer 16

Fully dissociates in Solution to release H+ ions

Question 17

Define weak acid

Answer 17

Does not fully dissociate in solution to release h+ ions

Question 18

What are the 4 types of bases?

Answer 18

• metal hydroxides
• ammonia
• metal oxides
• metal carbonates

Question 19

Which bases are alkalis and why?

Answer 19

• metal hydroxides and ammonia because they are water soluble
• they release OH- ions in solution