Top answers

Light with a frequency of 200nm is shone on a sodium plate with a work function of 2.28eV and electrons start escaping the surface of the plate due to the photoelectric effect. What is the maximum kinetic energy of one of these electrons in eV?

The work function of a metal is the minimum amount of energy required for electrons to start escaping the surface. This means that if we calculate the energy of each photon from the light and subtract the wo...
RS
Answered by Robert S. • Physics tutor
5289 Views

Describe how a a neurone communicates it's information with an adjacent neurone through the synapse? (3 marks)

Neurotransmitter is released from presynaptic neurone into the synaptic cleftDiffuses across the synapse Neurotransmitter binds onto postsynaptic membrane
SP
Answered by Sofia P. • Biology tutor
3073 Views

(i) What is the net agin of ATP in Glycolysis? (2 marks) (ii) Where is ATP used in Glycolysis?( 1marks)

(i) In the breakdown of glucose 4 ATP is produced, however 2 ATP are used leaving a net gain of 2 ATP.(ii) In the energy investment stage, 2 ATP molecules are used to phosphorylate glucose into fructose diph...
SP
Answered by Sofia P. • Biology tutor
3471 Views

Describe the electrons in Benzene

delocalised pi electronslower e density than alkeneshalogen carrier is needed to generate more powerful electrophile so reaction can take place with benzene draw benzene and resonance hybrids
IT
Answered by Imogen T. • Chemistry tutor
2744 Views

Décris tes dernières vacances. Où et quand es-tu allé(e) en vacances ? Avec qui ? Qu’est-ce que tu as fait ? Quel temps faisait-il ?

Quand j'étais petite, je suis allée en vacances avec ma famille. Nous avons étè en France. C'était fantastique parce que, nous avons fait du vélo de Londres à Paris sur l'avenue verte. Quand nous sommes arri...
JA
Answered by Juliet A. • French tutor
5568 Views