Which produces more heat?
os ? 2o2 ? oso4
or
os ? 2o2 ? oso4
for the phase change oso4 ? oso4 h = 56.4kj

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How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process