Given the balanced equation representing a reaction at 101.3 kpa and 298 k:
n2(g) + 3h2(g) => 2nh3(g) + 91.8 kj
which statement is true about this reaction?
(1) it is exothermic and dh equals -91.8 kj.
(2) it is exothermic and dh equals +91.8 kj.
(3) it is endothermic and dh equals -91.8 kj.
(4) it is endothermic and dh equals +91.8 kj.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.