1. Write the formula and give the name for the compounds formed between the following ions:
a. Cu2+ and Br-
d. Hg2+ and S2-
b. Fe2+ and 02-
e. Sn2+ and F-
c. Pb2+ and Cl-
f. Fe3+ and 02-

HEL M PLEAS

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

2. how is heavy water different from normal water

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?