Test Thursday Flashcards
How is the heat alone method carried out? (Diagram)
ceramic wool, silver oxide, heat —> above diagram
How is the heat and carbon method carried out? (Diagram)
Bottle cap, copper oxide, carbon powder, heat –> above diagram
How is the electrolysis method carried out? (Diagram)
Look at jotter for answer
what metals don’t usually need to be extracted?
Gold and Platinum
what metals are extracted using heat alone
Mercury,Silver
what metals are extracted using heat and carbon
copper,lead,tin,iron,zinc
what metals are extracted using electrolysis
Aluminium,magnesium,calcium,lithium,sodium,potassium
which metals react with water
potassium,sodium,lithium,calcium
what is produced when a metal reacts with water
hydrogen gas
How is the metal reacted with water reaction carried out?
1.Beaker half filled with water
2. Place metal inside beaker and record observations
Which metals react with acid?
Potassium,sodium,lithium,calcium,magnesium,aluminium,zinc,iron tin,lead
How is the metal reacted with acid reaction carried out?
1.Beaker half filled with acid
2. Place metal inside the beaker and record observations
What metals react with oxygen?
Potassium,sodium,lithium,calcium,magnesium, aluminium, zinc iron tin lead copper mercury, silver
How is the metal reacted with oxygen reaction carried out?
mini test tube,potassium permangate ceramic wool then metal that you want to test powder then ceramic wool over that. heat up for a few seconds and wait till the reaction occurs.
Draw the reactivity series (everything)
(diagram)
What is an alloy
An alloy is a mixture of two or more elements , where at least one element is a metal .
why are alloys made
Alloying is done for many reasons, typically to increase strength, increase corrosion resistance, or reduce costs.
Where are most metals found
In Ores
During the extraction of metals, what is reduced?
Metal ions are reduced, forming metal atoms
Positive metal ions form what when they are extracted from their ores?
neutral metal ions
T or F: during the extraction of metals, metal ions are reduced forming metal atoms
True
Aluminium metal is used to make aircraft, saucepans, window frames and cooking foil. State 3 properties which make it suitable for the use it is put
Conducts heat, flexible, lightweight
What is it meant by recycling metals?
To turn old, unused metals into something new
Why is there a need to recycle metals?
Metals don’t compost like what plants do so they need to be turned into something new to stop harming the plant
