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Explanation:
Chlorine is a nonmetal because it does not have the characteristics of a metal. It cannot conduct electricity, it is not flexible, and it is not hard
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K + S = K2S
Potassium reacts with sulfur to produce potassium sulfide
Answer:
(a)57.48 percent (b) 29.45 percent
Explanation:
copper(II) bromide is 29.45 percent copper and 71.54 percent bromine. so the first element percentage composition is always the percentage composition of the compound.
that goes same with sodium hydroxide. it is 57.48 percent sodium, 40 percent oxygen, and 2.52 percent hydrogen.
B. What could be done to move the boxcar is the answer
Answer:
Explanation: F=umg where u is coefficient of kinetic friction.
But F=ma.
a = u^2/2S
U= 425km/hr = (425*1000)/3600 =118m/s
S= 6.7km = 6700m
a = 118*118/ (2*6700) = 1.04m/s
u = 1.04/9.8 =0.11
