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How does ionisation energy vary across a period in the periodic table?

Ionisation energy generally increases across a period in the periodic table. This is because across a period, one more proton is added to the nucleus. This increases the quantity of positive charge so the...

JV
Answered by Jenni V. Chemistry tutor
2062 Views

Why does the Calvin cycle require six turns to create a single hexose sugar?

Three turns of the cycle produces six molecules of triose phosphate (TP). Five of these six molecules are used to regenerate ribulose bisphosphate (RuBP). So for three turns of the Calvin cycle, only one ...

RK
Answered by Rakhitha K. Biology tutor
14111 Views

Find the first three terms in the expansion of (4-x)^(-1/2) in ascending powers of x.

(4-x)-1/2 = (4 (1 - x/4))-1/2 = 1/2 (1 - x/4)-1/2 = 1/2 ( 1 + x/8 + 3x2/128 + ...) = 1/2 + x/16 + 3x2/256 + ...Therefore the first three ter...

Answered by Maths tutor
16981 Views

Describe the elements of the cognitive interview (6 marks)

The first step is reinstate the context whereby the interviewer asks the eyewitness to mentally and physically imagine and recall the crime scene including environmental context of crime scene e.g. smell,...

PK
Answered by parisa k. Psychology tutor
3308 Views

What is the pH of 0.10 mol.dm^(-3) sodium hydroxide solution, NaOH?

To calculate the pH of a solution/compound, we can use the equation: pH = - log10[H+]Within the sodium hydroxide solution, you would observe Na + and OH - ions so in order to find the concentra...

SS
Answered by Simran S. Chemistry tutor
20624 Views

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