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What is transcription?

Transcription is the process of sections of DNA being converted into mRNA (messenger RNA) that occurs in the nucleus of a cell. DNA is made up of a template strand and a coding strand which are complementary...
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Answered by Carolina M. • Biology tutor
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How can you tell if a reaction is endothermic or exothermic? Describe a way of determining if a reaction is exothermic or endothermic using simple laboratory equipment.

Exothermic and Endothermic reactions refer to if the change in Enthalpy of a reaction is negative or positive respectively. If a reaction is exothermic that means that enthalpy change is negative and heat is...
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Answered by Tom F. • Chemistry tutor
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How can I predict the shape of complex ions from their formulae?

Complexes are formed through ligand binding (donation of a pair of electrons to the central metal atom), and the shape of the complexes is usually determined by steric factors - or how the ligands can arrang...
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Answered by Tom F. • Chemistry tutor
4388 Views

What is the coefficient of x^2 in the expansion of (5+2x)^0.5?

We the answer in question in the form A(1+B) 0.5 and we can do that by factorising out the 5. This gives 5 0.5 (1+0.4x) 0.5 . 2. Identify the formula we are going to use and put in the numbers from this equa...
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Answered by Akinmi A. • Maths tutor
4363 Views

What is the trend in the first ionisation energy of the peroid 3 elements from sodium to argon.

The first ionisation energy of an element is the amount of energy required to remove the outermost electron. This increases across the peroid as there is an increase in proton number so higher nuclear charge...
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Answered by Agness J. • Chemistry tutor
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