Revising Metals 1

Copper wire is stretched into a wire for use in a wind turbine. This demonstrates that the Copper metal is...

• Ductile

• Malleable

• Stretchy

• High tensile strength

Old light bulbs contain a piece of filament- a thin metallic wire that emits light. What metallic properties is wire the exhibiting?

Carbon and Hydrogen are sometimes included on the reactivity series as references for metallic reactivity. Which of the following metals is closer to Carbon than Hydrogen in terms of reactivity?

• Al

• Sn

• Ag

• Pb

Powdered Magnesium is introduced to a solution containing pieces of rusty Iron. The rust eventually disappears- what is the name for this reaction?

Lithium quickly loses its luster when not kept in oil and Copper statues eventually turn green. What is the name of the process that causes these changes?

Salty water catalyses the reaction of Iron with Oxygen, this means that...

• Salt water dissociates into NaOH and Hydroxide ions, thereby allowing Oxygen to bind to the Iron

• Salt water activates the Iron and causes it to become more reactive

• Salt water corrodes the iron, thus allowing for it to react with oxygen

• Salt water speeds up the reaction

Magnesium forms what sort of ion?

• 1+

• 2+

• 3-

• 2-

Transition metals are able to form a variety of positive ions, known as oxidation states. Group 2 metals however, only form ___ ions

Calcium is dropped into a clear liquid and gas is produced. What types of reactions could be happening?

• Acid+Base

• Neutralisation

• Metal + Base

• Metal + Water

I react Lead with Sulfuric acid; there are two possible chemical equations that represent this reaction- why?

• Lead is a transition metal and may react with hydrogen

• Lead is low on the reactivity series and may not react with the sulfur

• Lead has two different oxidation states

• This is a rare case of a transition metal forming a negatively charged ion-it therefore reacts only with the oxygen in sulfuric acid