The reactivity series/Ionic equations

What happens when a metal reacts with water

Metal hydroxide + Water

They also lose electrons to form positive ions

Which form meats react with water

Potassium,sodium,lithium and calcium

How is a metals reactivity determined

How easily they lose electrons-forming positive ions

Name the metals in order of reactivity series

Potassium

Sodium

Lithium

Calcium

Magnetism

Carbon

Zinc

Iron

Hydrogen

Copper

Ions that you should remember

What ionic charge does zinc(Zn) form

2+

What ionic charge does silver(Ag) from

+1

What charge is sulfate

SO42-

What charge is carbonate

CO32-

What charge is nitrate

NO3-

Mg»»Mg2+ 2e-

Is this reduction or oxidation

This is oxidation as we see Mg is at 0 but then goes to 2+ at Mg2+ showing it gained oxygen . So this is a oxidation

What is the equation for Sulfuric acid

H2SO4

What is the equation for Nitric Acid

HNO3

What do acids produce in aqueous solutions

H+ ions

Write the equation when Sulfuric acid is dissolved in water

H2SO42→»2H+ + 2SO42-

What is a base

A base is a chemical that can neutralise acids to form salt and water

What are the two types of bases

Metal oxides or metal hydroxides

What is a alkali

A base that dissolves in water to form OH- ions(hydroxide)

How can we determine the Ph of a solution

Ph probe-Meaures Ph electronically by given a numerical value and is more accurate

Universal indicator- changes colour depending on certain Ph

What is the neutralisation reaction

Acid + base» Salt + water

H+ + OH» H2O