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
Ad libitum [116K]
3 years ago
15

What is the iron (ll) ion? How does it differ from the iron (lll) ion?

Physics
1 answer:
DaniilM [7]3 years ago
8 0
Iron III ion is an iron ion with a +3 charge. If iron bonded with oxygen, it would form Fe2O3 which is rust. In this case, the oxidation number on Fe is +3 and it is -2 on oxygen. This would be called iron (III) oxide. 

<span>The oxidation number of an ion times the number of the ions must equal zero when added together in a molecule with no charge. In this case, there are 2 iron molecules and each has a positive 3 charge. 2x3=6. There are three oxygen molecules each with a negative 2 charge. 3x-2=-6. 6+-6=0</span>
You might be interested in
Tracy stands on a skateboard and tosses her backpack to her friend who is standing in front of her. Which best describes the acc
madreJ [45]

Answer:

A

Explanation:

It is less than the acceleration of the backpack because abs has a greater mass.

5 0
3 years ago
Resistance increases with the length of the wire
Marta_Voda [28]
If the length of the wire increases, then the amount of resistance will also increase.

1. Take a long piece of wire and cut it 10 pieces. Those pieces should all be different sizes, one should be 5___ (units in meter, cm, inches, etc.), and the next should be 5 ___ (units in meter, cm, inches, etc.) more than the one before.
2. Take one piece of wire and measure the resistance using ___ and record the results in the data table.
3. Repeat the previous step with all the pieces of wire.
4. Compare and contrast the results you have found.

I hope this helps a bit :)
4 0
3 years ago
Why is it advised to tie any luggage kept on the roof of a bus with a rope?​
hram777 [196]

Answer:

While the bus is moving, luggage tends to remain in inertia of motion state. When the bus stops, the luggage tends to resist the change and due to inertia of motion it moves forward and may fall off. That's why it is advised to tie any luggage kept on the roof of a bus with a rope.

7 0
2 years ago
A 0.l ‑kilogram block is attached to an initially unstretched spring of force constant k = 40 N/m as shown right. The block is d
GalinKa [24]

Answer:

The maximum potential energy of the system is 0.2 J

Explanation:

Hi there!

When the spring is stretched, it acquires potential energy. When released, the potential energy is converted into kinetic energy. If there is no friction nor any dissipative forces, all the potential energy will be converted into kinetic energy according to the energy conservation theorem.

The equation of elastic potential energy (EPE) is the following:

EPE = 1/2 · k · x²

Where:

k = spring constant.

x = stretching distance.

The elastic potential energy is maximum when the block has no kinetic energy, just before releasing it.

Then:

EPE = 1/2 · 40 N/m · (0.1 m)²

EPE = 0.2 J

The maximum potential energy of the system is 0.2 J

8 0
3 years ago
Which organic compound forms much of the structure of cells?
o-na [289]

Which organic compound forms much of the structure of cells?

Answer: A Carbohydrates

4 0
1 year ago
Read 2 more answers
Other questions:
  • . Conservation along the horizontal using a bicycle wheel: Stand on the platform holding a bicycle wheel with its axis horizonta
    11·1 answer
  • Teams A and B are in a tug-of-war challenge. Team A wins the challenge. What can be said about Team A?
    11·2 answers
  • There are 92 naturally occurring elements. How does this relate to the number of compounds?
    12·1 answer
  • Suppose you toss a tennis ball upward.a) Does the kinetic energy of the ball increase or decrease as it moves higher?b) What hap
    11·1 answer
  • What type of force slows you down as you slide across the floor?
    15·2 answers
  • On your business card , you position your businesses as "the area's most creative cookery " this phrase is your
    11·1 answer
  • An electron remains suspended between the surface of the Earth (assumed neutral) and a fixed positive point charge, at a distanc
    12·1 answer
  • What are the units of potential difference??
    15·1 answer
  • which would be better suited for agriculture, the soil of a tropical rain forest or that of a temperate deciduous forest
    13·1 answer
  • What is the expermintal example of Zeeman effect?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!