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Solve x^2 + 7x + 6 = 0

ax 2 + bx + c 1) First factorise the quadratic equationTwo numbers whose product is 'c' and sum is 'b'In this question, c= 6 and b= 76 x 1 = 6 and 6 + 1 = 7So your two numbers are 6 and 1--> x 2 + 7x + 6 ...
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Answered by Natasha W. • Maths tutor
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Plan out a 4 step organic synthesis to form N-methyl Butanamide from 1-Bromopropane. Include relevant reagents and conditions for each reaction. Include 1 mechanism for one of the stages.

The chain length needs to be extended by 1, so we can use NaCN dissolved in ethanol to extend the carbon chain by 1. This will produce butanenitrile. Mechanism here. 2) Now that the nitrile is formed, we can...
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Answered by George W. • Chemistry tutor
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What is the role of the rough endoplasmic reticulum in a eukaryotic cell?

Site of protein synthesis. RNA is transcribed in the nucleus and travels to the ribosomes on the endoplasmic reticulum (which are located in the cell cytoplasm) for translation/protein synthesis.
Answered by • Biology tutor
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Draw a dot-cross diagram of Chlorine Triflouride, and discuss the shape exhibited by the molecule

(Drawing cannot be put into this area). The shape of this molecule is influenced by the bonding regions and lone pair regions (lone pairs repel more than bonded pairs). The molecule has 2 lone pairs and 3 bo...
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Answered by George W. • Chemistry tutor
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Predict the boiling points (lowest to highest) of Butan-1-ol, 2-methylpropane and Butane

Butan-1-ol will have the highest boiling point of all 3 as it has Hydrogen bonds acting between molecules. This occurs due to the presence of the electronegative O atom. 2-methylpropane is a branched version...
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Answered by George W. • Chemistry tutor
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