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How to balance equations?

Balancing equations is making sure that all atoms, ions and charges have the same count on both sides of the equation. We start with checking metals, hydrogen and lastly oxygen and charges. In order to balan...
Answered by • Chemistry tutor
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Anna and James share out £40 in the ratio 5:3 in that order. How much do they each get?

1st Find the total number of parts they will be splitting the £50 into. If Anna is getting 5 parts and James is getting 3 how many parts in total? 5 + 3 = 8 2nd Work out how much each part is worth. To do th...
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Answered by Rebecca K. • Maths tutor
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Give 2 features of DNA and explain how each one is important is semi-conservative replication?

Semi-conservative replication would produce 2 copies that each contained one of the original strands and one new strand. 1- Weak hydrogen bonds between bases allow two strands to unzip2- 2 strands exists, bo...
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Answered by Fady K. • Biology tutor
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What is the Photoelectric effect?

The photoelectric effect is the stimulated emission of electrons from a (generally metallic) material upon irradiation with light of sufficient energy (light of a short enough wavelength). The incident photo...
Answered by • Physics tutor
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How should I go about planning my essays during the exam?

Depending on the amount of time that you have to write your essay, I would recommend spending anywhere between 5 and 10 minutes on planning. It may seem like a substantial amount, but I assure you that a pla...
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Answered by Rianna H. • English tutor
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