Answer:
it's A endothermic its when two objects rub each other to form heat this is also known as friction force
Answer:
1
Explanation:
there is only one sulphur (S) atoms in the formula for sodium sulphate
I am almost positive that the answer is: Plasmas. Let me know if im right or not please!! :)
Answer:
(3,2)
Explanation:
The x-co-ordinates above are 2 and 4
Their midpoint is 2+4/2
The y-co-ordinates above are 5 and -1
Their midpoint is 5+(-1)/2 = 2
The overall midpoint is (3,2)
