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grin007 [14]
3 years ago
9

What is a magnet? Explain what it is please.

Chemistry
1 answer:
Debora [2.8K]3 years ago
3 0
A magnet is a material usually composed of iron, ore or another metallic alloy that has its <span>component atoms so ordered that the material exhibits properties of magnetism, such as attracting other metal alloy objects or aligning itself in an external magnetic field.</span>
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Write the symbol of the element that has an electron configuration of 1s22s22p6.
antoniya [11.8K]
Neon is the element - Ne the symbol
8 0
3 years ago
Sarah is writing a paper explaining protein formation. Choose the correct way to complete each sentence.
Amanda [17]

Answer :

Amino acids join by forming (1) peptide bonds.  Water is released.

The chains of amino acids vary according to their (2) side chains, which each have differing makeup.  

These chains determine the protein’s structure and they fold to create a unique (3) third-dimensional shape.

Explanation :

Amino acid : The amino acids are the building blocks of protein. Amino acids are the compound which consist both amine (-NH_2) and carboxylic (-COOH) groups along with the side chains. In the protein, many amino acids are linked by the peptide bonds.

Th peptide bonds are formed by the combining of amino group of one amino acid to the carboxylic group of another amino acid by releasing of water.

Some examples of amino acids are glycine, lysine, alanine, etc.

Peptide bond formation image is shown below.

In the image 'R' can be contained by different groups like hydrogen, methyl, phenyl, etc

8 0
3 years ago
Imagine that scientists have found a planet with an outer layer divided into plates made of hard, solid rock, but the mantle bel
VMariaS [17]

Answer:

well it could be mars

Explanation: it closer so its hotter but also there not almost the same

8 0
3 years ago
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All of the following are examples of human organs EXCEPT the
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eyelashes are not a part of the the human organs

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When 429 mmhg of argon, 1.2 atm of neon, and 225 mmhg of helium are mixed, what is the total pressure?
Dmitry_Shevchenko [17]

The total pressure  1566 mm Hg.

Pressure is the force applied perpendicular to the floor of an object per unit location over which that pressure is shipped. Gauge strain additionally spelled gage pressure is the pressure relative to the ambient stress. pressure.

The SI unit of stress is pascal which is identical to one newton in keeping with rectangular meter. apparently, this name was given in 1971. earlier than that pressure in SI became measured in newtons in line with square meter.

Partial pressure of Argon = 429 mm Hg

Partial pressure of Neon = 1.2 atm

   ∵ 1 atm = 760 mm Hg

=> 1.2 atm = 1.2 * 760 mm Hg

                 = 912 mm Hg

Partial presser of He = 225 mm Hg

S0, Total pressure = Par + P ne + P he

                              =  ( 429 + 912 + 225 ) mm Hg

                              = 1566 mm Hg

Learn more about pressure here:-brainly.com/question/25965960

#SPJ4

6 0
1 year ago
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