C4 Flashcards
What is the formula of metals and oxygen
Metal + Oxygen = Metal oxide
What happens when potassium comes into contact with water
Starts fizzing and gliding on the surface of the water
Purple flame
What is the equation for reacting metals with water
Metal + water = metal hydroxide + hydrogen
What is the equation for reacting metals with acids
Metal + acid = metal salt and hydrogen
Magnesium + Hydrochloric acid → Magnesium chloride + Hydrogen
Transition metals can either have medium reactivity or low reactivity.
True or false?
True
What groups have high reactivity
Group 1 ,2 and 3
What three metals react vigorously with oxygen
Potassium
Sodium
Lithium
What four metals will react with water
Sodium
Lithium
Potassium
Calcium
What is a displacement reaction
When a more reactive metal displaced a less reactive metal from its compound
What would you expect to observe if you react magnesium/zinc with copper sulfate
The solution will turn from blue to colourless
What is redox
When oxidation and reduction takes place at the same time
What always happens to the more reactive metal
What always happens to the less reactive metal
Reactive- ALWAYS GET OXIDISED
less reactive- ALWAYS GETS REDUCED
weaker metal- reduced in status
Describe what would happen if you added zinc metal oxide to a solution of silver.
Zinc is more reactive than silver
The zinc will strip the silver of its compound
The zinc will dissolve and become apart of the solution while the copper forms a powdery copper compound as it’s kicked out of the solution
What’s the symbol equation for nitrate
NO3
What’s the symbol equation for sulfate
SO4
What does the more reactive element in a displacement reaction become
What does the less reactive element in a displacement reaction become
More- an ion = to neutralise
Less- an element
