Chemistry
Chemistry past questions and answers from WAEC and JAMB
Page 20
a.
Graduated beaker
b.
Pipette
c.
Test tube
d.
Burette
a.
Brownian motion
b.
Diffusion
c.
Osmosis
d.
Tyndall effect
a.
excessive ultraviolet light from the sun to reach the earth's surface
b.
excessive release of infrared light from the sun to the earth's surface
c.
corrosive effect of the chemicals on humans and animals
d.
acidic effects of the chemicals on humans
a.
A decrease in the free energy of the solution
b.
A decrease in the entropy of the solution
c.
A lowering of the temperature of the solutionn
d.
An increase in the entropy of the solution