Examine the following sequence of phase change: Solid—>Liquid=>Gas. Would we need to ADD OR REMOVE heat energy?
A Remove
B. Add
C. Neither
D. Both
o
of what phase change?
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Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Salt in oceans comes from and of rocks