Top answers

Describe the trend in boiling point of the halogens.

The boiling point of the halogens increases as you go down the group. The halogens exist as diatomic molecules, with both atoms sharing an electron to completely fill the outer shell. The increase in boiling...
LW
Answered by Lucy W. • Chemistry tutor
51955 Views

why do metallically bonded structures conduct electricity

In order for metals to bond they need to loose electrons to ensure that they have a full outer shell and become positively charged. The positive cations (metal ions) are attracted to the negatively charged e...
LP
Answered by Lauren P. • Chemistry tutor
3730 Views

25 cm3 of NaOH was titrated with 0.050 mol dm-3 HCl. NaOH + HCl --> NaCl + H2O. 21.5 cm3 HCl neutralised 25 cm3 NaOH. Concentration of NaOH in mol dm-3?

21.5 cm 3 / 1000 = 0.0215 dm 3 of HCl. n = cv so (0.050) x (0.0215) = 0.001075 mols of HCl. NaOH + HCl --> NaCl + H 2 O so there is a 1:1 ratio of reactants to products. Therefore there are 0.001075 mols ...
AS
Answered by Arran S. • Chemistry tutor
3491 Views

Why do we use cracking?

To split large chain hydrocarbons into smaller more useful and more valuable hydrocarbons
HA
Answered by Haider A. • Chemistry tutor
2683 Views

Describe the three main types of bonding?

Ionic bonding - occurs between a metal an a none metal. Electrons are transferred between two atoms to form ions - atoms with either a positive or negative charge. Ionic bonding occurs because of the strong ...
KM
10637 Views