7. Fill in the chart with information on the following atoms. Element Atomic Mass
# of
symbol number number protons
2.Si
# of
# of
electrons
neutrons
23
51
23
77
115
77
145 1n+3
108
47
46
51
61
54
Со
59
24
8
160
80
35

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:

The limiting reactant(s) appeared to be