Top answers

Describe and explain the reactivity of group 1 metals

The reactivity of Group 1 metals increases as we move down the periodic table.As we move down the group 1 elements the number of electron shells increases. This means that the electrostatic forces of attract...
MD
Answered by Myles D. • Chemistry tutor
3173 Views

Why do the boiling points of the hydrogen halides increase as you go down the group from HCl to HI?

That's a fantastic question. Here, we must consider two types of intermolecular forces as these are the attractive forces that affect the boiling point of a substance: van der Waals and permanent dipole perm...
AS
Answered by Amarpal S. • Chemistry tutor
18717 Views

What is the difference between the empirical formula and molecular formula?

Both empirical and molecular formula give information about what different elements make up a compound. The empirical formula shows the simplest whole number ratio of the number of atoms of different element...
AV
Answered by Arvand V. • Chemistry tutor
15852 Views

What would be the pH of a reaction between potassium oxide and water?

Potassium oxide is an ionic compound: K 2 O Made up of ions K + and O 2- When added to the water the oxide reacts to form a hydroxide compound.K 2 O + H 2 O = 2KOHKOH is made of K + and OH - ions. The high l...
AM
Answered by Alice M. • Chemistry tutor
10337 Views

Describe how to find the concentration of an alkali using an acid of a known concentration.

Titrate the acid of known concentration against the alkali of unknown concentration to find the volume of acid needed to neutralise a known volume of the alkali. Remember to use an appropriate indicator and ...
JK
Answered by James K. • Chemistry tutor
3659 Views