Answer: different charges but same mass
protons and neutrons determine the mass (electrons are too light)
since atom q and atom r are of the same proton and neutron , they are of the same mass
protons and electrons determine the charge
a proton has a 1+ and electron has a 1- charge
atom q has no charge, the protons and electrons cancel each other out
atom r has a 1- charge as there is one more electron than proton.
It will gain one electrons to form the fluorine ion
Answer:
Evaporation
Explanation:
Boiling the water will make it evaporate, leaving the solid at the bottom of the solution
Under STP 1 mol of gas has volume 22.4 L.
2C2H2 + 5O2 ------> 4CO2 + 2H2O
from reaction 5*22.4 L 4 *22.4L
given 60L x L
x=(60*4 *22.4)/5*22.4 = (60*4)/5 =48 L of CO2