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
solmaris [256]
3 years ago
15

Give the oxidation number of the element indicated for each compound.

Chemistry
1 answer:
NARA [144]3 years ago
8 0

Answer:

a. C: +3 ; b. N: +5 ; c. S:+6 ; d. C: +4; e. Mn: +7 ; f. Cr: +6.

Explanation:

Global charges in molecules is 0

You sum all the oxidation states to determine the oxidation state for the compound.

Na₂C₂O₄ → Sodium oxalate → Global charge: 0

Oxidation state for C: +3

HNO₃ → Nitric acid → Global charge: 0

Oxidation state for N: +5

H₂SO₄ → Sulfuric acid → Global charge: 0

Oxidation state for S: +6

HCO₃⁻  →  Bicarbonate → Global charge: -1, this is an anion

Oxidation state for C: +4

KMnO₄ → Potassium permanganate → Global charge: 0

Oxidation state for Mn: +7

Cr₂O₇⁻ → Anion dichromate → Global charge: -2

Oxidation state for Cr: +6

You might be interested in
Please help me with chemistry
Murljashka [212]

Answer:

60.052 g/mol (molar mass of vinegar)

84.007g/mol (baking soda )

7 0
2 years ago
What is the mass of an object that has a density of 0.500 g/cm3 and a volume of 5.00 mL?
attashe74 [19]

Answer:

<h2>The answer is 2.5 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 0.5 g/cm³

1 mL = 1 cm³

5 mL = 5 cm³

volume = 5 cm³

The mass is

mass = 0.5 × 5

We have the final answer as

<h3>2.5 g</h3>

Hope this helps you

4 0
2 years ago
Plss help meeeeeeee i need help
Anastasy [175]

Answer:

D: dark cloud

E: elliptical galaxy

F: flare star

7 0
3 years ago
What structures are found in plant cells that are not what structures are found in plant cells that are not me found in animal c
Amanda [17]

Special Structures in Plant Cells. Most organelles are common to both animal and plant cells. However, plant cells also have features that animal cells do not have: a cell wall, a large central vacuole, and plastids such as chloroplasts.

3 0
2 years ago
All of the following are true of carbohydrates except
Evgen [1.6K]

3. they make up larger compounds like fats and amino acids, would be the correct answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Imagine an object falling to the Earth. Which of the following most accurately describes the motion of that object?
    6·2 answers
  • In which reaction is it possible for nitrogen to change into carbon?
    13·1 answer
  • How many significant figures are in each measurement? 0.00052 m
    12·2 answers
  • 2.25 g/ml at 700mmHg, 200 C. Find molar mass of gas.
    15·1 answer
  • What type of symbolic relationship do a bat and cow have ?
    9·1 answer
  • How many conversion factors can be created from one equivalence statement
    15·1 answer
  • When the following equation is balanced what is the coefficient for CaCI2? Ca (s) + 2HCI (aq) —&gt; CaCI2 (aq) + H 2(g)
    9·2 answers
  • Which term means finding ways to describe and explain the natural world
    6·1 answer
  • 6.Which of the following is NOT true about the lens?
    7·1 answer
  • If 5.0g nitrogen dioxide completed reacted, how many grams of nitric acid would form?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!