In which equation does the term "heat" represent heat of fusion?
(1) nacl(s) + heat --> nacl(l)
(2) naoh(aq) + hcl(aq) --> nacl(aq) + h2o(l) + heat
(3) h2o(l) + heat --> h2o(g)
(4) h2o(l) + hcl(g) --> h3o+(aq) + cl-(aq) + heat

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

Word equation for k(s) +h2o(l) yield koh (aq) + h2