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What is condensation polymerisation ?

Polymerisation is defined as the process of bringing individual molecules, called monomers, together to form chains of these molecules called polymers. When this process is done with molecules containing dou...
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Answered by Kishen P. Chemistry tutor
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Calculate the relative molecular mass of CaCO3. (relative atomic mass (Ar): C= 12, Ca= 40, O= 16)

Number of atoms Ca x1 => 40x 1= 40 C x 1 => 12x1 = 12 O x 3= 16 x 3= 48CaCO3 RMM= 40 + 12 + 48= 100
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Answered by Roxanne M. Chemistry tutor
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How do you form the passé composée?

The past tense known as the passé composée in French is composed of three parts. The subject (je), the auxiliary verb (a conjugated form of with avoid or être) and finally the past participle (mangé).Avoir a...
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Answered by Katharine D. French tutor
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How do I analyse an unseen poem?

The first thing to do when analysing an unseen poem is to read it through twice. The first time you read is to gain your first impressions and understanding of the poem, and the second time is to start notic...
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How can we really know what the past was like?

Historians can never truly know what the past was like. This is why historians have different interpretations of the past and how it occurred. Having said this, historians can still form a detailed and compr...
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Answered by Angus R. History tutor
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