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
OlgaM077 [116]
3 years ago
13

Which describes the requirements for making an electromagnet?

Chemistry
2 answers:
slava [35]3 years ago
8 0
I think its D(a battery,a length of wire and so on...)
Ivenika [448]3 years ago
5 0
Its D! because a battery and an iron are always connect in a closed parallel circut:)
You might be interested in
Balance the following chemical equations.
solong [7]

Answer:

1) 2,1,2

2) 2,2,1,1

3)2,1,2

4)2,2,3

5)2,3,1,3

6 [ I cannot answer that]

7)6,1,2

3 0
4 years ago
Can I+ (the iodine cation) becalled a Lewis base?<br> Fullyexlplain your answer.
Alenkinab [10]

Answer: No I+ cannot be called a Lewis base.

Explanation:

According to Lewis Theory, it defines an acid as an electron-pair acceptor and a base as an electron-pair donor.

In terms of Lewis basicity, Iodide ion (anions) has the more readily available lone pair electrons for donation since iodide ion is less electronegative .

With the help of the net electronic structure one can understand the answer of the question, because we need to study the I+  ion (cation) structure.

Lewis acid is therefore any substance, that can accept a pair of nonbonding electrons. 

From the picture below I+ is most likely ready to accept electrons not to give from it 5s orbital to become stable.

7 0
3 years ago
What is the pH level of soda?​
tresset_1 [31]
Cherry Coke was found to be the next most acidic (pH of 2.522), and Coke was the third most acidic soda tested (pH of 2.525). Battery acid has a pH of 1.0. Pure water at room temperature has a pH of 7.0. The results show that a soda's acidity is not the whole story when it comes to tooth erosion.
5 0
3 years ago
A block made of a certain material has a thickness of 20 cm and a thermal conductivity of 0.04 m C. At a particular instant in t
amid [387]

Answer:

heat flux ( Q ) = 8 W/m³ uniform heat flux throughout the block

Explanation:

flat plate ecuation with uniform source:

  • d2T / dx² = - Q / k...........from general balance
  • if x = 0 ⇒ dT / dx = 0 ; Q = 0
  • if x = L ⇒ T = T1

∴ k = 0.04 W/mC;   L = 0.2 m

If T = - 100x² + 20x

⇒ dT / dx = - 200x + 20

⇒ d2T / dx² = - 200 = - Q / k

⇒ Q / k = 200

⇒ Q = 200 * 0.04 W/mC

⇒ Q = 8 W/m³

8 0
4 years ago
Use Coulomb's Law to calculate the energy of a copper ion and an oxide ion at their equilibrium ion-pair separation distance.
Tanzania [10]
E= (231 aj/pm) (-2)(2)/77+140 Pm

E= 231 aj (-4)/217

E= -868 aj/ 217

E= -4aj







8 0
3 years ago
Other questions:
  • the element copper cu has two naturally occurring isotopes. 69% of all coopers consist of atom with 34 neutrons, 31% of all samp
    15·1 answer
  • What mass of carbon dioxide is produced upon the complete combustion of 26.5 L of propane (the approximate contents of one 5-gal
    8·1 answer
  • What happens to an object's temperature if the kinetic energy of its particles decrease
    7·1 answer
  • What is included in a chemical equation
    6·1 answer
  • What is happening at point C in the diagram? HEEEEELPPPP!!!!​
    9·1 answer
  • Which of the following statements is NOT true about combustion reactions?
    7·1 answer
  • Convert 9.3 moles of KBr to grams.
    8·1 answer
  • 11 Which is a bright streak of light in Earth's atmosphere?
    6·2 answers
  • I.Molten Nacl conducts electricity due to the presence a
    6·1 answer
  • Tom pushes on a 50-kilogram box with a force of 25 newtons. Assuming the surface on which the box moves is frictionless, at what
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!