I’m very sorry but I don’t know how to answer that question.
Answer:
-74.6 kj/mol
Explanation:
you can see the answer at the pic
Yes becuase it says it maintains its velocity if it is moving or at rest
Answer:C11 -----^boron+positron
Explanation:the above reaction is nuclear reaction.
Positron emission causes the decrease in atomic number by one.
As in above example carbon-11is converted into boron isotop which has atomic number of 5.