4.1 acids bases and nutralisation

Question 1

formula of hydrochloric acid

Answer 1

HCl

Question 2

sulfuric acid formula

Answer 2

H2SO4

Question 3

nitric acid

Answer 3

HN03

Question 4

ethanoic acid

Answer 4

CH3COOH

Question 5

define a base with example

Answer 5

A base neutralises an acid to form a salt.

e.g. metal oxides, metal hydroxides, metal carbonates and ammonia.

Question 6

define alkali

Answer 6

An alkali is a water soluble base.

When dissolved in water, alkalis release hydroxide (OH-) ions.

Question 7

acid + metal oxide=

Answer 7

salt + water

Question 8

acid + alkali=

Answer 8

salt + water

Question 9

acid + metal hydroxide

Answer 9

salt + water

Question 10

acid + metal carbonate

Answer 10

salt+water+carbon dioxide

Question 11

define strong acid and which ones are strong

Answer 11

releases H+ ions into solution and fully dissociates in aq solution eg. hcl

Question 12

define weak acid

Answer 12

only release a proportion of its available hydrogen atoms into solution as H+ ions. It partially dissociates in aq solution

Question 13

define neutralisation

Answer 13

acid reacts with a base
to produce a salt AND water.