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

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which statement best describes the function of enzymes?