metals Flashcards
What is the ore of potassium?
potassium salt
What is the ore of sodium?
common salt
What is the ore of calcium?
limestone
What is the ore of magnesium?
magnesite
What is the ore of aluminium?
bauxite
What is the ore of zinc?
zinc blende
What is the ore of iron?
haematite
What is the ore of lead?
galena
What is the ore of copper?
copper oxide or copper pyrite
What is the ore of mercury?
cinnabar
What is the ore of silver?
silver glance or free in nature
What is the ore of platinum and gold?
free in nature
How is the ore extracted for potassium, sodium, calcium, magnesium and aluminium?
by electrolysis
How is the ore extracted from copper?
copper oxide: by heating with carbon
copper pyrite: by heating with air
Which elements are reactive with oxygen in air?
potassium, sodium, calcium, magnesium, aluminium, zinc, iron, lead, copper and mercury
what is the word equation for metals reacting with oxygen in air?
metal + oxygen -heat-> metal oxide
which elements are reactive with cold water?
potassium, sodium, calcium
what is the word equation for metals reacting with cold water?
metal + water -> metal hydroxide + hydrogen gas
which elements are reactive with steam?
potassium, sodium, calcium, magnesium, aluminium, zinc, iron
what is the word equation for metals reacting with steam?
metal + water -> metal oxide + hydrogen gas
which elements are reactive with dilute acid?
potassium, sodium, calcium, magnesium, aluminium, zinc, iron, lead
what is the word equation for metals reacting with dilute acid?
metal + dilute acid -> metal salt + hydrogen gas
