colours to learn Flashcards
1
Q
what colour is copper sulfate (CuSO4)
A
blue
2
Q
what colour is copper oxide (CuO)
A
black
3
Q
what colour is copper carbonate (CuCO3)
A
green
4
Q
what colour is copper metal
A
pink/orange/brown
5
Q
what colour is sulfur
A
yellow
6
Q
what colour is methyl orange in acid
A
red
7
Q
what colour is methyl orange in alkali
A
yellow
8
Q
what colour is phenolphthalein in acid
A
colourless
8
Q
what colour is phenolphthalein in alkali
A
pink
9
Q
what colour is litmus in acid
A
red
9
Q
what colour is litmus in alkali
A
blue
