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Quelles sont les avantages et inconveniants de l'internet?

Encore aujourd'hui, Internet reste l'une des plus grande creation humaine. Elle ouvre une multitude de portes et de possibilités, permet un monde ouvert et connecté en favorisant l'échange et le contact. Cep...
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Answered by Maee V. • French tutor
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Draw the reaction mechanism for the formation of ethanol from bromoethane and water and name the mechanism.

The first step is the draw out the molecules in question to understand what is happening in the reaction. You can see that the bromine atom has been substituted for an alcohol group (OH) in the enthane molec...
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Answered by Henry H. • Chemistry tutor
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when do you use the imperfect and preterite tenses

The imperfect tense is used for actions that were repeated in the past or to describe a state in the past. eg. when I was younger I used to dance - cuando era pequena bailaba. the preterite tense is used whe...
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Answered by Charley L. • Spanish tutor
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How does a hypothesis test work?

A hypothesis test can be thought of as being somewhat similar to a court case. In a court case, we want to find out whether someone is either guilty, or not guilty, so we assume that they are not guilty, and...
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Answered by Denis A. • Maths tutor
4261 Views

Why is an action potential an all or nothing process?

An action potential is the signal neurons use to communicate with each other. It is caused by the rapid opening of sodium channels and influx of sodium ions. Because at rest the inside of the neuron is negat...
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Answered by Gemma G. • Biology tutor
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