11. A researcher has found that they can form 3 different compounds between zinc and sulfate. One compound has a ratio of 2 zinc to 1 sulfate; the other has a ratio of 1 zinc to
2 sulfate, and the last compound has a ratio of 2 zinc to 5 sulfate. Write down the
oxidation number of zinc, chemical formula, and name of the compound

it's c. elements are placed in rows based on how may valencies electrons have.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

answer seismograph;