Metals And Non Metals

Question 1

Corrosion

Answer 1

An undesirable process where by a metal changes to its oixie nor some other compound by combining with oxygen

Question 2

Rusting

Answer 2

The corrosion of Fe ( iron )

Question 3

What happens when metals react with an acid

Answer 3

Hydrogen gas is given off

Question 4

What does zinc with hydrochloric acid form

Answer 4

Zinc chloride and hydrogen

Question 5

Metals

Answer 5

Hard , dense , shiny and have high melting points

Question 6

Malleable

Answer 6

Means can be hammered in to different shapes

Question 7

Unreactive metals

Answer 7

Can be found in nature eg gold and silver

Question 8

Rusting

Answer 8

needs water and oxygen

Question 9

What prevents corrosion

Answer 9

Paint grease galvanising chrome plating

Question 10

Galvanising

Answer 10

putting a layer of zinc on iron to prevent rusting

Question 11

Bronze

Answer 11

Copper and tin

Question 12

Brass

Answer 12

Copper and zinc

Question 13

Steel

Answer 13

Iron and carbon

Question 14

Solder

Answer 14

Lead and tin

Question 15

Cats make zebras cry

Answer 15

Reactivity series in order : calcium , magnesium , zinc , copper

Question 16

Periodic table

Answer 16

Left side of stairs = metals

right side of stairs = non-metals

Question 17

Alloy

Answer 17

A mixture of metals