Answer:
I don't know
Explanation:
Maybe they shouldn't copy each other
Answer:
a) 0,5
Explanation:
If x=6 and y=2, then (2x-4y)/(x+y)=(2*6-4*2)/(6+2)=(12-8)/8=4/8= 0,5
Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.
You're going to divide the mass of chlorine within the compound by the mass of the compound, and then multiply the result by 100 to get the answer