1. 56
2. 84
3. 112
4. 168
112
1. Mo, V2O5
2. V2O5,Fe
3. Fe, Mo
4. Mo, Fe
Fe, Mo
1. The pH of 1.0x10-8 M HCl is less than 7
2. The ionic product of water at 250C is 1.0 x10-14mol L-2
3. Cl-is a Lewis acid
4. Bronsted - Lowry theory cannot explain the acidic character of AlCl3 pan
Cl-is a Lewis acid
1. 2.4
2. 0.24
3. 1.3
4. 0.13
2.4
1. Solid in liquid
2. Liquid in solid
3. Liquid in liquid
4. Solid in solid
Liquid in solid
1. P2O5,Na3PO4
2. Na2HPO4,H2O2
3. NaH2PO4,H2O
4. Na2HPO4,H2O
Na2HPO4,H2O2
1. LiOH is a weaker base than NaOH
2. Salts of Be undergo hydrolysis
3. Ca(HCO3)2is soluble in water
4. Hydrolysis of beryllium carbide gives acetylene
Hydrolysis of beryllium carbide gives acetylene
1. ratio of the numebr of solute molecules to the total number of molecules in solution.
2. ratio of the number of solvent molecules to the number of solute molecules.
3. ratio of the number of solvent molecules to the number of solute molecules.
4. ratio of the number of solvent molecules to the number of molecules.
ratio of the number of solvent molecules to the number of solute molecules.
1. (CH3)BH2
2. (CH3)3B2H2
3. (CH3)3B2H3
4. (CH3)6B2
(CH3)3B2H2
1. Si
2. Pb
3. C
4. Sn
C