Well, the sugar is dissolving in the water as you mix it which is a physical change.
Answer:
Sis I think it happened with me but I am not able to remember if u want u can share if it happened with u
37.8 g CH2Br2 X (1 mol CH2Br2 / 173.83 g) = 4.60X10^-3 mol CH2Br2
<span>4.60X10^-3 mol CH2Br2 X (2 mol Br / 1 mol CH2Br2) X 6.02X10^23 atoms/mol = 5.54X10^21 bromine atoms</span>
