unit 1 - Acids + alkalis Flashcards Preview

N5 Chemistry Learning Intentions RM > unit 1 - Acids + alkalis > Flashcards

Flashcards in unit 1 - Acids + alkalis Deck (14)
Loading flashcards...
1
Q

_____ + water = acid

A

non-metal oxide

2
Q

_____ + water = alkali

A

metal oxide

3
Q

acids have a pH of

A

less than 7

4
Q

alkalis have a pH of

A

more than 7

5
Q

can acids and alkalis conduct electricity? why?

A

they CAN conduct because they contain ions which are free to carry charge

6
Q

the more concentrated an acid or alkali, ________?

A

the better it conducts

7
Q

what is a base?

A

a soluble metal oxide which produces an alkaline solution

8
Q

which three groups of substances are bases?

A

carbonates, hydroxides, oxides

9
Q

what is neutralisation

A

the reaction of an acid with a base which results in the pH of a substance moving towards 7

10
Q

acid + metal oxide = ______?

A

salt + water

11
Q

acid + metal hydroxide = ______?

A

salt + water + hydrogen

12
Q

acid + metal carbonate

A

salt + water + carbon dioxide

13
Q

name the salt produced in a neutralisation of hydrochloric acid and sodium hydroxide

A

sodium chloride.

14
Q

acid + alkali = ______?

A

salt + water