Top answers

Chemistry
GCSE

Give an example of an alkane and give one main difference between alkane and alkene?

Example of an alkane is C​​​​​​H​4​​​​ methane

The main difference between alkane and alkene is the saturation of the carbon-carbon bond. In alkane is unsaturated and has a C-...

SK
Answered by Suniya K. Chemistry tutor
4301 Views

What is the difference between a metal and a transition metal?

Metals are the largest category of elements and they are characterized by their appearance: usually they possess a silvery shine, they are solid (except for mercury), they are malleable and they conduct e...

RS
23324 Views

What determines rate of reaction?

Rate of reaction is determined by the number of successful collisions between the reactants per second. A collision is successful if two particles collide with enough energy to react. This can be affected...

CS
Answered by Charlie S. Chemistry tutor
2395 Views

The same mass of large, medium and small marbles where reacted separately with diluted HCl. This is and exothermic reaction. Will the rise in temperature for each reaction differ? If yes than why?

The smallest marbles will give the highest rise in temperature, than the medium and lastly the largest marbles will give the lovest rise in temperature. 

The smaller the beeds the larger the surfac...

IR
Answered by Ines R. Chemistry tutor
2854 Views

How can an explosion be explained by the different ways molecules are packed together in solids, liquids and gases?

a) Gases tend to occupy a much larger volume than solids and liquids, since intermolecular forces are much weaker. b) Explosives are very unstable molecules: in this cont...

RS
2348 Views

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