Identify these reactions 2 Na + Cl 2  2 NaCl

CaCO 3  CaO + CO 2
Zn + HCl  ZnCl 2 + H2
S + O 2  SO2
Ag NO 3 + NaCl  AgCl + NaNO 3

4Fe + 3O 2  2 Fe 2 O 3
2HgO  2 Hg + O 2

Name the element in group 17, period 2. (periodic table)

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?