1. (NaPO3)6
2. Mg3(PO4)3
3. Na3PO4
4. MgSO4
(NaPO<sub>3</sub>)<sub>6</sub>
1. NaF+CaCl2
2. KHF2+LiF
3. KF+LiHF2
4. CaC2+KF
KHF<sub>2</sub>+LiF
1. CaAl2Si2O8.xH2O
2. Na2Al2Si2O8.xH2O
3. CaB2Si2O8.xH2O
4. K2Al2Si2O8.xH2O
CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>.xH<sub>2</sub>O
1. poling
2. cupellation
3. distillation
4. Levitation
cupellation
1. 103
2. 3 x 104
3. 108
4. 104
10<sup>4</sup>
1. CH3Cl
2. CCl4
3. CHCl4
4. C2H5Cl
CHCl<sub>4</sub>
1. N2(g) + O2(g) + 180.8kJ → 2NO(g)
2. N2(g) + 3H2(g) - 92kJ → 2NH3(g)
3. C(graphite) + H2O(g) → CO(g) + H2(g) - 131.4kJ
4. C(graphite) + 2S(s)→ CS2(l) - 91.9kJ
N<sub>2</sub>(g) + 3H<sub>2</sub>(g) - 92kJ → 2NH<sub>3</sub>(g)
1. 3
2. 4
3. 5
4. 6
4
1. CH3Cl,NaCl
2. CH3Cl,CH3COON
3. CHCl3, HCOONa.H2O
4. C2H5Cl,CH3COONa
CHCl<sub>3</sub>, HCOONa.H<sub>2</sub>O
1. CH3CO2C2H5
2. C2H2-O-C2H5
3. CH3CHO
4. CH3CH2OH
CH<sub>3</sub>CO<sub>2</sub>C<sub>2</sub>H<sub>5</sub>