Paper 1 Flashcards
What is the reactivity series?
Potassium, sodium, calcium, magnesium, aluminium, carbon, zinc, iron, tin, lead, hydrogen, copper, silver, gold, platinum.
During a displacement reaction, the _____ reactive metal displaces the _____ reactive metal from the compound.
Most
Least
Metals always ______ electrons.
Donate
Non-metals always ______ electrons.
Gain
What are some signs of a chemical change?
Fizzing/bubbles (effervescence)
Colour change
Temperature change
Formation of a precipitate
Change in smell
If an element is more reactive than carbon, we use __________ to displace it.
Electrolysis
If the element is between copper up to carbon in reactivity, we use ________.
Displacement using carbon
How are mercury and silver extracted?
Thermal decomposition.
What is an ore?
A naturally occurring rock containing a metal or metal compound with a sufficient amount of it to make it worthwhile extracting them.
What is electrolysis?
Using electricity to break down an ionic substance.
What is the anode?
Positive electrode
What is the cathode?
Negative electrode.
What are the electrodes made out of?
Graphite
What does inert mean?
Not very reactive
What are some properties of aluminium?
Low density
Conducts heat and electricity
Resists corrosion
