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umka21 [38]
3 years ago
14

What is the difference between a permanent magnet and a temporary magnet

Chemistry
1 answer:
vichka [17]3 years ago
3 0
If something becomes magnetized for a short amount of time it is only a matter of time before it isn't magnetic anymore. permeant on the other hand is forever and will never undo itself.   
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A substance is combusted in the presence of oxygen within a bomb calorimeter. Using the diagram provided below, determine change
insens350 [35]

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igão caiu na pegadinha do lemão

Explanation:

igão caiu na pegadinha do lemão

igão caiu na pegadinha do lemão

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5 0
3 years ago
Read 2 more answers
How many unpaired electrons are present in a lithium atom?.
Cerrena [4.2K]
  • Lithium has Z =3

Electronic configuration is given by

\\ \tt\bull\rightarrowtail 1s^22s^1

  • 1s orbital is filled
  • 2s orbital is unfilled

So

  • unpaired electrons=1
5 0
2 years ago
What concentration of the barium ion, ba2 , must be exceeded to precipitate baf2 from a solution that is 1. 00×10−2 m in the flu
Anon25 [30]

The amount of barium ions that must be present in order for the salt to precipitate is 0.245 M.

A solution's solubility product is the result of raising each ion's concentration to the power of its stoichiometric ratio. It is portrayed as

A combination of 1 barium ion and 2 fluoride ions results in the ionic compound known as barium fluoride.

The following equation describes the equilibrium reaction for barium fluoride ionization:

BaF₂ → Ba²⁺ + 2F⁻

Ksp = [Ba²⁺] · [F⁻]²

2.45*10^{-5}= [Ba²⁺] * [1. 00*10^{-2} ]^{2}

[Ba²⁺]=0.245 M

As a result, 0.245 M of barium ions must be present in order for the salt to precipitate.

<h3>Solubility </h3>

Solubility in chemistry refers to a chemical's capacity to dissolve in another substance, the solvent, to produce a solution. Inability of the solute to create such a solution is the opposite quality, or insolubility. A substance's degree of solubility in a given solvent is often determined by the amount of the solute present in a saturated solution, which is a solution in which no additional solute can be dissolved. The solubility equilibrium between the two compounds is considered to have been reached at this time. If there is no such restriction for a given solute and solvent, the two are referred to as being "miscible in any amounts."

What concentration of the barium ion, ba2 , must be exceeded to precipitate baf2 from a solution that is 1. 00×10−2 m in the fluoride ion, f−? ksp for barium fluoride is 2. 45×10−5

Learn more about solubility here:

brainly.com/question/8591226

#SPJ4

4 0
2 years ago
What is a bond between positive and negative ion called?
amm1812

It is called a ionic bond or a electrovalent bond. Hope it helps :)

8 0
3 years ago
What is the cost in dollars for the nails used to build a fence 80 meters long if it requires 30 nails per meter? There are 40 n
svet-max [94.6K]

Answer:

4500 cent

Explanation:

From the question, we were told that

a fence 80 meters long requires 30 nails per meter.

1 metre fence = 30 nails

Then 80 meters long= ( 30 × 80)

= 2400 nails

Which means a fence 80 meters long will require 2400 nails in total.

We need to find the cost in dollars for the nails to build a fence 80 meters long.

We know that 40 nails per box will cost 75 cents per box.

(2400 nails/40 nail per box)= 60 box

Then 60 box will be needed to complete the fence.

the cost in dollars for the nails to build a fence 80 meters long= (60 box × 75 cent per box)=4500 cent

7 0
3 years ago
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