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What is the difference between HDPE and LDPE polymers?

Both are types of plastics but they vary by density and structure.HDPE (high density polyethene) is made of many linear chains which are held together by intermolecular forces.LDPE (low density polyethene) i...
MS
Answered by Margo S. • Chemistry tutor
9652 Views

Describe the difference between bases and alkalis, and explain acid-alkali neutralisation reactions.

A base is a something that react with an acid to form water and a salt. An alkali is any base that is soluble in water. An acid in solution will form H+ ions as the acid splits. For example HCl in solution b...
LG
Answered by Lydia G. • Chemistry tutor
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What are the differences and similarities between alkanes and alkenes?

Both alkanes and alkenes are hydrocarbons, meaning they are made up of hydrogen and carbon only. However, alkanes are saturated hydrocarbons consisting of single bonds only whereas alkenes are unsaturated hy...
NH
Answered by Nancy H. • Chemistry tutor
49625 Views

What are the differences between the effects of a catalyst vs reactant concentration on the position of equilibrium/ why?

An increased concentration of reactant will shift equilibrium to the right, because the reactants will react to form more product in order to decrease concentration again. However, while a catalyst will incr...
PS
Answered by Pryanka S. • Chemistry tutor
2237 Views

What evidence is there for delocalisation in benzene?

X-ray diffraction shows all carbon-carbon bonds in benzene are the same length (140 pm), between the lengths of a single (147 pm) and double bond (135 pm). This suggests that Kekule's alternating single and ...
WB
Answered by William B. • Chemistry tutor
12627 Views