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
nydimaria [60]
3 years ago
10

What kind of energy is stored in an electromagnet?

Chemistry
1 answer:
meriva3 years ago
6 0
Kinetic is the answer to your question
You might be interested in
A student ran the following reaction in the laboratory at 671 K: 2NH3(g) N2(g) + 3H2(g) When she introduced 7.33×10-2 moles of N
vaieri [72.5K]

Answer:

Kc = 8.05x10⁻³

Explanation:

This is the equilibrium:

                 2NH₃(g)   ⇄     N₂(g)     +     3H₂(g)

Initially       0.0733

React         0.0733α          α/2                3/2α

Eq     0.0733 - 0.0733α    α/2                0.103

We introduced 0.0733 moles of ammonia, initially. So in the reaction "α" amount react, as the ratio is 2:1, and 2:3, we can know the moles that formed products.

Now we were told that in equilibrum we have a [H₂] of 0.103, so this data can help us to calculate α.

3/2α = 0.103

α = 0.103 . 2/3 ⇒ 0.0686

So, concentration in equilibrium are

NH₃ = 0.0733 - 0.0733 . 0.0686 = 0.0682

N₂ = 0.0686/2 = 0.0343

So this moles, are in a volume of 1L, so they are molar concentrations.

Let's make Kc expression:

Kc= [N₂] . [H₂]³ / [NH₃]²

Kc = 0.0343 . 0.103³ / 0.0682² = 8.05x10⁻³

3 0
3 years ago
Is it true that the formula for magnesium sulfate shows that there are four atoms of sulfur
Ulleksa [173]
The chemical formula for magnesium sulfate is MgSO4, so it shows that there are four atoms of oxygen but not sulfur. There is only one atom of sulfur in the formula
4 0
3 years ago
What do the elements in each pair have in common? k, kr be, mg ni, tc b, ge al, pb?
tensa zangetsu [6.8K]
The pairs are:
K, Kr - Same period
Be, Mg - Same group
Ni, Tc - Both are transition metals
B, Ge - Both are metaloids
Al, Pb - Both form inert oxides
4 0
3 years ago
If I leave 750 mL of 0.75 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates, what will t
maks197457 [2]

the answer to your question is

M1V1=M2V2

V2=750-150=600 ml

0.75M*750 ml = M2*600

M2=0.75*750/600 ≈ 9.38 M


3 0
2 years ago
The periodic table is based on an element's
nasty-shy [4]

Answer:

Atomic number

Explanation:

7 0
2 years ago
Other questions:
  • What is the mass in grams of 1.24 mol of water
    9·1 answer
  • Suppose that a fictitious element, x, has two isotopes: 59x (59.015 amu) and 62x (62.011 amu). the lighter isotope has an abunda
    15·1 answer
  • Could you please Calculate the number of atom of 40K (potassium 40) in 1gram of KCl. Taking into account the isotopic abundance
    7·1 answer
  • Calculate the work (kJ) done during a reaction in which the internal volume expands from 28 L to 51 L against an outside pressur
    5·1 answer
  • what do the colors produced by fireworks indicate? a. a physical change c. a state change b. a chemical change d. an element cha
    15·1 answer
  • Help please chapter 7.1
    15·1 answer
  • Propene also reacts with bromine CH2CHCH3+Br2-> C3H6Br2
    6·1 answer
  • When carbonates react with acids fizzing occurs.what does the fizzing indicate?​
    10·1 answer
  • Which of the following is an ether?<br> A)<br> B)<br> C)<br> D)
    14·1 answer
  • What is the average atomic mass of element X:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!