Answer:
0.289 moles of MgCl2
Explanation:
(27.5 g MgCl2) x (1 mol MgCl2 / 95.211 g MgCl2) = 0.289 moles of MgCl2
Hey there!
Mass = 640 g
Density = 0.8 g/mL
Volume = ?
Therefore:
D = m / V
0.8 = 640 / V
V = 640 / 0.8
V = 800 mL
hope that helps!
thanks bro for helping me thanku so much
Answer :-
C) Physical change