How does breaking up a solid speed dissolving in a liquid?

a.
increases the surface area
b.
decreases the surface area
c.
decreases the pressure
d.
increases the pressure

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

In one or two grammatically correct sentences, write a definition for the term molecule geometry

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.