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Outline and explain two consequences of the increase in the number of lone parent families

One consequence of an increasing number of lone parent families is a rise in anti-social behaviour. This is usually because these types of families are at risk of poverty which may cause the children to e...

Answered by • Sociology tutor

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An industry is producing copper sulphate (CuSO4) from copper carbonate (CuCO3) and sulphuric acid (H2SO4). The company calculated that from 800 g of CuCO3 they will produce 1kg of CuSO4. However they only produced 900g. What is the percentage yield ?

The percentage yield is calculated in the following way: (Actual yield/Theoretical yield)*100 Here, the actual yield is 900g and the theoretical yield that the company calculated is 1kg. ...

Answered by Dora L. • Chemistry tutor

2031 Views

explain why a lack of thiamine (vitamin B1) causes a build up of lactate in cells

Thiamine is a co-enzyme for pyruvate dehydrogenase (PHD) the enzyme that converts pyruvate into acetyl-CoA at the start of the Krebs cycle, the 2nd stage of respiration. Without thiamine the activity of P...

Answered by John O. • Human Biology tutor

2576 Views

How does Aeschylus contrast his presentation of the Persians and the Greeks?

In The Persians, Aeschylus' presentation of the Persians contrasts against his presentation of the Greeks. One of the primary differences between Persians and Greeks is the depiction of the notio...

Answered by Emma B. • Classical Civilisation tutor

3616 Views

In a DNA molecule 28% of all bases found were Adenine. What are the remaining bases and their percentages in this molecule?

first remember your base pairs: Adenine binds to Thymine and then Cytosine binds to Guanine. So if 28% are Adenine then 28% must also be Thymine. 28+28= 56% so 100-56 gives you the remaining percentage wh...

Answered by John O. • Biology tutor

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