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)
B) Equal to the number of protons
<span>Haemoglobin is a pure substance because it contains only one type of atom. </span>
what is interfacial tension in liqui liquid extraction?
Answer:
I'm so sorry if this is wrong but I think its B
