Metals

Metals properties

Hard, shiny, malleable, ductile, conductive

Properties of copper

Good conductor of heat and electricity, malleable, does not react with water

Alloy

is a mixture of an element and a metal to make it suited for a specific task

Gold is alloyed with what

gold is alloyed with copper to not wear away so easily

Brass consists of

coppe and zinc

Copper is alloyed with what

with zinc to make musical instruments

Aluminium properties

has low density to build aircraft’s

What are the raw materials used in extraction of iron

Iron, coke, air, limestone

What happens in the extraction of iron

Carbon reacts with oxygen forming carbon dioxide. Carbon dioxide reacts with carbon forming carbon monoxide. Carbon monoxide reduces iron from its oxide

Which metals can get displaced by carbon

Zinc, iron, tin , lead

Which metals are less reactive than hydrogen

copper, mercury, silver, platinum, gold

What is the reaction of metal and water

Metal + water → metal hydroxide + hydrogen

what is the reaction of metal and steam

metal + steam → metal oxide + hydrogen

what is the reaction of metal and acid

metal + acid → salt + hydrogen

What happens to the colour of the solution of zinc and copper sulfate

the copper is displaced so the blue colour of the copper sulfate solution fades

What is the reaction of metal carbonate and acid

metal carbonate + acid → salt + water + carbon dioxide

how do you test for carbon dioxide

using limewater

What is limewater made of

calcium hydroxide

Why does lime water turn cloudy when it detect carbon dioxide

Due to calcium carbonate particles

what happens to metal carbonates when heated

they decompose