Acids Flashcards
Nitrogen
78%
Oxygen
21%
Argon
0.96%
Carbon Dioxide
0.04%
Which is a noble gas in the atmosphere?
Argon
Magnesium + Oxygen —> Magnesium Oxide
Bright White light
White powder forms
Sulphur + Oxygen —> Sulphur dioxide
Blue Flame
Hydrogen + Oxygen —> Water
Squeaky pop
Metal + Oxygen = Metal Oxide + Water
Alkaline solution
Non-Metal + Oxygen = non-metal dioxide + water
Acidic solution
Methylene orange
Acid - Red
Neutral - Yellow
Alkalis - Yellow
Phenolphthalein
Acid - colourless
Neutral - colourless
Alkalis - pink
Blue litmus Paper
Acid - Red
Neutral - blue
Alkalis - Blue
Red litmus paper
Acid - Red
Neutral - Red
Alkalis - Blue
Acid
H+ Donor
Alkalis
OH- Donor
Base
H+ acceptor
Acid + Base —>
Salt + water
How do you obtain pure dry crystals?
Add Base to hot acids
Filter out excess base
Pour salt solution in evaporating dish
Heat Solution
Once crystals start to form remove from heat
Leave to allow time for crystals to form
Filter out excess solution
Pat crystals dry with filter paper to remove excess water
Acid + Carbonate —>
Salt + Water + Carbon dioxide
Acid + Metal —>
Salt + Hydrogen
Common Soluble Compounds
- Sodium
- Potassium
- Ammonium
- Nitrate
Soluble excpet with silver and lead
Chlorides
Soluble except with calcium, barium and lead
Sulphates
Insoluble except with socium, potassium, ammonia
Carbonates and Oxides
Insoluble except with Sodium, Potassium, Calcium
Hydroxide
