How many water molecules are in a block of ice containing 1.50 mol of water (h2o)?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d