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What is photosynthesis?

Photosynthesis is the process that takes place in green plants to produce their energy. It is when light energy is converted into chemical energy. Carbon dioxide and water are taken in and used to make ox...

TG
Answered by Thomas G. Biology tutor
2870 Views

Describe the difference between ionic and covalent bonds

Ionic bonds are formed due to the strong electrostatic connection between oppositely charged ions whereas covalent bonds are formed by the sharing of an electron pair between two atoms

TS
3784 Views

How Do I Choose Which Texts I Should Use For My Exam?

When thinking about exam texts, you should first look at past paper examples to get a feel for what kind of questions you will be asked. For example, if the theme of a paper is "love", you will,...

IS
2833 Views

Solve the simultaneous equations: y=x/2 + 2 and 2y+3x=12

Label the equations (1): y=x/2 + 2 and (2): 2y+3x=12. Firstly, multiply equation (1)by 2, this will give you (1a): 2y=x+4, then, substitute (1a) into (2). This gives you (x+4)+3x=12. Therefore, 4x+4=12. 4...

JB
Answered by Joseph B. Maths tutor
5501 Views

Solve the equation x^2-9x+20=0

First, we need to factorise the equation on the left hand side, this can be done by finding two numbers that add together to make the 'b' coefficient (-9) and multiply to make the 'c' coefficient (20).

JB
Answered by Joseph B. Maths tutor
28372 Views

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