Inorganic chemistry 350-400

Which of the following substances contains a nonpolar covalent bond?

• H2O

• NaCl

• NH3

  
  

• MgF2

• N2

Which of the following compounds contains a polar covalent bond?

• NaF

• HCl

  
  

• Br2

•  MgO

• O2

  
  

Which of the following compounds contains an ionic bond?

• NH3

• H2O

• CaO

• H2

  
  

• CH4

  
  

Which of the following elements is a noble gas?

• Hydrogen

• Nitrogen

• Argon

  
  

• Chlorine

  
  

Which of the following is a transition metal?

• Zinc

• Aluminum

  
  

• Iron

  
  

• Sodium

  
  

What is the molecular shape of water (H2O)?

• Linear

  
  

• Trigonal planar

  
  

• Bent

• Tetrahedral

  
  

Which of the following is a strong acid?

• HClO4

  
  

•  HNO3

  
  

• H2SO4

  
  

• HCl

  
  

Choose the answer in which a decrease in pressure shifts the equilibrium of the system towards the reactants: 

• FeO (s) + CO (g) ↔ Fe (s) + CO2 (g)

  
  

• 2SO2 (g) + O2 (g) ↔ 2SO3 (g)

  
  

•  2CO2 (g) ↔ 2CO (g) + O2 (g)

  
  

• H2 (g) + Br2 (g) ↔ 2HBr (g)

  
  

Excess white phosphorus burns according to the thermochemical equation P4(s) + 3O2(g) → P4O6(s) + 1505 kJ. White phosphorus with a mass of 3.72 g was ignited. If the yield of the reaction product is 80%, the amount of heat in kJ released as a result of the reaction is:

• 180.6

  
  

• 36.12

  
  

• 144.48

  
  

• 45.15

  
  

Which oxide with the following formulas belongs to non-acidic oxides:

• SO2

  
  

• P2O5

  
  

• SO3

  
  

• CO