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What is the geometry of a BF3 molecule?

The molecule is 'trigonal planar'.This is because the central atom, boron, is attached to three fluorine atoms, and each fluorine atom repels the other fluorine atoms as much as possible. The only configurat...
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Answered by Lauren S. • Chemistry tutor
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A ball is thrown downwards from a height of 10m with speed of 5m/s, assuming g=10m/s^2, calculate the final velocity of the ball when it hits the ground

First recall the suvat equation: v^2=u^2+2as. It is always handy to draw a diagram in physics to illustrate the problem. Next, using u=5, a=10, s = 10, solve for v in the suvat equation, arriving at the fina...
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Answered by Sachin V. • Physics tutor
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Integrate the function f(x) = 1/(4x-1)

t Using the fact that d/dx ( ln g(x)) = g'(x)/g(x), we can see that the integral of this function will be an ln function. From observing f(x) we see that if the answer was ln(4x-1) then f(x) would need to be...
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Answered by Sachin V. • Maths tutor
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What is phagocytosis and what steps are involved?

Phagocytosis is the name given to the process where phagocytes (a type of white blood cell found in blood ) will ingest invading pathogens or large particles and digest their contents. . 1. The pathogens wil...
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Answered by Sanjana A. • Biology tutor
21757 Views

What is the position of chemical equilibrium and how can it change? (A-Level/high GCSE)

A dynamic chemical equilibrium refers to a reversible chemical reaction, where the forward and reverse reactions are happening at the same rate. This results in the concentrations of reactant and product bei...
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Answered by James C. • Chemistry tutor
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