– Chemical Reactions
reaction is simply a rearrangement of the way that atoms are connected together
to form molecules.
chemical formula shows how combination of hydrogen gas with oxygen gas forms
hydrogen atoms are connected together in pairs to form H2 molecules
of hydrogen gas.
oxygen atoms are also connected together in pairs to form O2
molecules of oxygen gas.
is created when one H2 molecule binds with single oxygen atom and
forms water molecule.
half of the O2 usually combines with another H2 to form a
second water molecule.