Question

What happens at the synapse BTW two neurons??

Answer 1

This triggers the nerve-ending of a neuron to release chemical messengers called neurotransmitters. These chemicals diffuse across the synapse (the gap) and bind with receptor molecules on the membrane of the next neuron. ... This stimulates the second neuron to transmit the electrical impulse

Answer 2

The synapse is the junction where the axon endings of the two neurons meet
The synapse transmits the impulse from one neuron to the other