Reference no: EM13772051

Part :

 

1. Balanced the following equations.

 

a. I2 (s)  +    Cl2 (aq)  →    ICl5(s)

 

b. Al (s) +  O2(g)     →     Al2O3

 

c. CaSO4 (aq) + AgNO3 (aq)→     Ag2SO4 (aq)  +      Ca(NO3)2 (aq)

 

d. Fe3O4 (s) +    O2 (g)   → Fe2O3 (s)

 

e. B2H6 (l)   + O2 (g)   →      B2O3 (s)    +     H2O (l )

 

 

2. Classify each of reaction as synthesis, decomposition, and single or double replacement, and combustion.

 

a. 2Na  +Cl→  2NaCl _____________________________________   

 

b. NaOH+  HCl→NaCl  +  H2O   ______________________________

 

c. 2 KClO3  →   2KCl  +  3 O2    _____________________________

 

d. Cu +  2 AgNO3  →  Cu(NO3)2  +  2Ag   _____________________________

 

e. C3H8  +  5O2  →  3CO2  +  4H2O     ____________________________

 

 

 

3. Write complete net ionic equation for following reaction.

 

BaCl2  (aq)  +  K2SO4 (aq)  →  BaSO4 (s)  +  2KCl (aq)

 

 

4. Which of the following substances are soluble or insoluble in water?

 

a. BaSO4 __________________

 

b. PbI2     _______________________

 

c. NaNO3 __________________________

 

d. NH4Cl ___________________________

 

e. Ca3(PO4)2__________________________

 

f. MgCl2__________________________

 

g. CaCO3    ________________________

 

 

5. A.  Define following terms with example. Oxidation, Reduction, Oxidizing agent, reducing agent

 

B.Assign an oxidation number of oxygen atom in each element in the following compounds or ions.

 

 

a. N2O5

 

b. CO2

 

c. CH2O

 

d. HClO3

 

6. Identify oxidizing agent and reducing agent for following reaction.             

 

 2I (aq) +   Br2 (aq)     _______  I2 (aq)    +   2 Br (aq) 

 

2+          2+

 

      Fe(s)    +    Cuaq) _________  Fe(aq)    +   Cu

 

7. In each of the following, tell whether the substance gains electrons or loses electrons in redox reactions.

 

 

a. An oxidizing agent

 

b. A reducing agent

 

c. A substance undergoes oxidation

 

d. A substance undergoes reduction

 

8. For the following substances, tell whether the oxidation number increases or decreases in a redox reaction.

 

a. An oxidizing agent

 

b. A reducing agent

 

c. A substance undergoing  oxidation

 

d. A substance  undergoing reduction

 

 

9. Write the balance equation and classify the reaction.

 

 

Silver nitrate react with potassium chloride in aqueous solution gives solid silver chloride and potassium nitrate.

 

10.  Write and balance equation for following acid-base neutralization reactions. 

 

 

a. Ca (OH )2(aq)   +    H2SO4(aq) →

 

b. Ca(OH)2 (aq)   +   CH3COOH(aq) →

 

c. NaHCO3 (aq)   +   HBr (aq)  →