Question

Answer the following questions in 30-40 words:
(8 marks)
a) Differentiate between thermoplastics and thermosetting plastics, listing one example
each.
b) How do metals react with water? Illustrate your answer with two examples​

Answer 1

Answer:

a) The primary physical difference is that thermoplastics can be remelted back into a liquid, whereas thermoset plastics always remain in a permanent solid state. ... Think of thermoplastics as butter – butter can be melted and cooled multiple times to form various shapes.

b) Metals react with water according to the activity series of metals. The highly reactive metals like potassium, sodium and calcium react vigorously with water to form a base and evolve hydrogen gas. ... The metals further down like gold and silver do not react at all with water.

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Answer 2

Answer:

this is your answer

Explanation:

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