click below
click below
Normal Size Small Size show me how
METALS/non metals
discussion
| Question | Answer |
|---|---|
| what are metals? | hard, dense shiny, high melting points |
| good or bad conductors of heat and electricity | good |
| what does malleable imply? | hammered into different shapes |
| whart word describes metals that can be stretched into wire? | ductile |
| describe non metals | generally the opposite properties to metals |
| describe an alloy | a mixture of 2 or more metals |
| name 3 alloys | brass. bronze. steel |
| list conditions needed for corrosion | water, oxygen |
| list 3 ways of preventing corrosion | painting, greasing, galvanising |
| give an example of where brass, bronze, stainless steel is used | instruments,medals, cutlery |
| list metals in reactivity series | calcium, magnesium, zinc, copper |
| what gas is given off when they are put in hcl? | hydrogen |