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Describe and explain the three main factors affecting the rate of photosynthesis

The rate of photosynthesis is affected by: Light intensity - without enough light, cells cannot photosynthesize even if there is an excess of carbon dioxide and water Carbon dioxide concentration - without e...
BM
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Which of Na+ and Mg2+ is the smaller ion. Explain your answer. (2 marks)

Mg2+ is the smaller ion. (1 mark) Mg2+ has a larger nuclear charge than Na+ and has the same number of electrons. (1 mark) Further explaination: Magnesium is further along the period than sodium is which mea...
JH
Answered by Joseph H. • Chemistry tutor
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Solve algebraically: 6a+b = 16 and 5a - 2b = 19

6a + b = 16 (1) 5a - 2b = 19 (2) (1) x 2: 12a + 2b =32 (1) + (2): 12a + 2b + 5a - 2b = 32 + 19 = 51 17a = 51 a = 51 / 17 = 3 Substitue a = 3 back into (1): (6 x 3) + b = 16 18 + b = 16 b = 16 - 18 = - 2 Subs...
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Answered by Niva R. • Maths tutor
3591 Views

Find the general solution to the differential equation '' (x^2 + 3x - 1) dy/dx = (2x + 3)y ''

Now although this might seem like quite a complex question at first, it's a little less intimidating when we take a while to look at it- you might notice that we can seperate x and y terms like so: 1/y dy = ...
ST
Answered by Sam T. • Maths tutor
8008 Views

When do I use être in the perfect tense?

The most popular and useful way of remembering when to use être in the perfect tense, is the MRS VANDERTRAMP list: Monter, Retourner, Sortir, Venir, Arriver, Naitre, Descendre, Entrer, Rester, Tomber, Rentre...
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Answered by Kiah B. • French tutor
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