Single-replacement and double-displacement reactions are given below. Use the activity series to find out whether a reaction would occur and identify the products of such reactions. 3Pb(s) + 2H3PO4(l) →
CaSO4(s) + Mg(OH)2(aq) →
2Al(s) + 3CuCl2(aq) →
2Ag(NO3)2(aq) + CuSO4(aq) →
2HgO(s) heat→
2Al(s) + 3Br2(g) →

1 is the answer to this problem

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

c) should be the answer.