acids, alkalis and salts Flashcards
1
Q
litmus paper in acidic solutions
A
red
2
Q
Litmus paper in alkaline solutions
A
blue
3
Q
phenolphthalein in acidic solutions
A
colourless
4
Q
phenolphthalein in alkaline solutions
A
pink
5
Q
methyl orange in acidic solutions
A
red
6
Q
methyl orange in alkaline solutions
A
yellow
7
Q
acid
A
source of hydrogen ions, proton donors
8
Q
alkalis
A
neutralise acids, soluble in water, sources of hydroxide ions, proton acceptors
9
Q
acid + metal
A
salt + hydrogen
10
Q
acid + metal carbonate
A
salt + carbon dioxide + water
11
Q
acid + metal oxide/hydroxide
A
salt + water
12
Q
acid + ammonia
A
ammonium salt
13
Q
moles formula
A
m = v x c
