1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana [24]
3 years ago
5

Read the following chemical equations.

Chemistry
1 answer:
Viktor [21]3 years ago
4 0

Answer:

D. Chlorine is reduced in reaction 1 and iron is oxidized in reaction 2.

Step-by-step explanation:

One way to determine if a substance has been oxidized or reduced is to calculate its <em>oxidation number</em>.

The important rules for oxidation numbers are:

  1. The oxidation number of an element is zero.
  2. The oxidation number of H is usually +1.
  3. The oxidation number of Cl is usually -1.
  4. The sum of all the oxidation numbers in a compound is zero.

Also,

  • An increase in oxidation number is oxidation.
  • A decrease in oxidation number is reduction.

1. \stackrel{\hbox{+1}}{\hbox{H}_{2}}\stackrel{\hbox{-2}}{\hbox{S}} + \stackrel{\hbox{0}}{\hbox{Cl}}_{2}  \longrightarrow\stackrel{\hbox{+1}}{\hbox{ 2H}}\stackrel{\hbox{-1}}{\hbox{Cl}} +\stackrel{\hbox{0}}{\hbox{S}}

2. \stackrel{\hbox{0}}{\hbox{Fe}} + \stackrel{\hbox{0}}{\hbox{S}} \longrightarrow \stackrel{\hbox{+2}}{\hbox{ Fe}}\stackrel{\hbox{-2}}{\hbox{S}}

Thus, the oxidation number of S in H₂S and FeS is +2.

In Reaction 1, the oxidation number of Cl decreases from 0 to -1. The Cl is reduced.

In Reaction 2, the oxidation number of Fe changes from 0 to +2. The Fe is oxidized.

You might be interested in
How many electrons must Aluminum lose or gain to obtain a noble gas<br> electron configuration? *
BaLLatris [955]

Answer:

3 electrons

Explanation:

aluminum : [Ne]3s23p1 [ N e ] 3 s 2 3 p 1 . It loses 3 electrons from 3s and 3p orbitals and attains the noble gas configuration of Neon.

6 0
3 years ago
Read 2 more answers
Photosynthesis takes place in the
guajiro [1.7K]

Answer:

Chloroplast

Explanation:

4 0
3 years ago
Please help thank you (15 points)
Eva8 [605]

Answer:

D. The sun has less gravitational pull on Pluto because it is farther away.

6 0
3 years ago
What is 0.3m equal to mm?
madreJ [45]

0.3×100cm=300cm

300cm×10mm=3000

4 0
3 years ago
¿Qué pasaría si un organismo o animal fuera eliminado de una red alimentaria?
34kurt

Answer: Sí

Explanation: Sí

4 0
3 years ago
Other questions:
  • How much heat energy is required to melt 337.1 g of HBr? The molar heat of fusion of HBr is 2.41 kJ/mol.
    13·2 answers
  • Mendeleev arranged the known chemical elements in a table according to increasing
    11·1 answer
  • In the reaction aA + bB &gt;&gt; dD, the lowercase letters represent?
    9·1 answer
  • A crime-scene is roped off with yellow tape. The rectangular area is 5.6 meters long 10.75 meters wide. What is the area of the
    15·1 answer
  • One mole of copper has a mass of 63.5 grams. Approximately how many atoms of copper are present in one mole of copper?
    10·1 answer
  • Determine which equations you would use to solve the following problem: Calculate the amount of heat needed to change 20.0 g of
    6·1 answer
  • Atoms with_____or less electrons in the outermost level tend to lose electrons
    10·1 answer
  • What is the chemistry​
    7·2 answers
  • Data that is collected that is mostly numbers?
    7·1 answer
  • Write the step by step process of digestion in ruminants using 4 square method.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!