Balance this chemical equation, chemistry homework help

 

Graded Assignment

Unit Test, Part 2

Answer the question below. You may use the periodic table in the Chemistry: Problems and Solutions book for this test. When you have finished, submit this assignment to your teacher by the due date for full credit.

(5 points)

Score

 
  1. What is the balanced form of the following equation?

Br2 + S2O32– + H2O → Br1– + SO42– + H+

Answer:

(5 points)

Score

 
  1. Here is a chemical equation:

CH4 + O2 → CO2 + H2O

  • Balance this chemical equation.
  • State what type of chemical reaction this is.
  • What will accompany the products as a result of this reaction?
  • Discuss how your balanced chemical equation agrees with the law of conservation of mass.

Answer:

(5 points)

Score

 
  1. For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, A + B → AB.
  • single-displacement
  • double-displacement
  • synthesis
  • decomposition

Answer:

(5 points)

Score

 
  1. Provide two written definitions of an oxidation-reduction reaction and for each definition tell which reactant is reduced and which is oxidized. Then tell which of the two definitions is the most comprehensive.

Answer:

Your Score

___ of 25

(5 points)

Score

 
  1. For each of the compounds of sulfur below, write the oxidation number of sulfur in the compound.

Answer:

Compound

Oxidation Number
of Sulfur

S

 

SCl2

 

SO2

 

SO3

 

H2S

 

S2Cl2

 

H2SO4

 
Order a unique copy of this paper
(550 words)

Approximate price: $22