The atomic number of an atom will always identify the amount of protons in its nucleus. if the atom is neutral, what else is identified by the atomic number?
a.
the number of electrons in the atom
b.
the most common isotope of the atom
c.
the number of neutrons in the atom
d.
the atomic mass of the atom

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

How does the viscosity of magma change as magma cools?

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)