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xeze [42]
4 years ago
12

Why is the nucleus very tense?

Chemistry
1 answer:
iren [92.7K]4 years ago
7 0
Atoms are composed almost entirely of empty space, about 99.99999999% empty space. Virtually all of the atom's mass is from its protons an neutrons. In cases where intense gravity has 'squeezed out' most of the empty space, such as in a neutron star, the matter is incredibly dense. This density is approximately equivalent to the mass of a Boeing 747 compressed to the size of a small grain of sand, or the human population condensed to the size of a sugar cube.
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AlekseyPX
Acids change the rate Corrosion and increase its temperature. 
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3 years ago
A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing 2.314 kg of water?
Mariulka [41]

Answer:

g NaCl = 424.623 g

Explanation:

<em>C</em> NaCl = 3.140 m = 3.140 mol NaCl / Kg solvent

∴ solvent: H2O

∴ mass H2O = 2.314 Kg

mol NaCl:

⇒ mol NaCl = (3.140 mol NaCl/Kg H2O)×(2.314 Kg H2O) = 7.266 mol NaCl

∴ mm NaCl = 58.44 g/mol

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5 0
3 years ago
What is required to move from one state or phase of matter to the next
tigry1 [53]

energy is required to move from one state or phase of matter to the next. Energy is used to make a liquid into a gas or a solid into a liquid.

7 0
3 years ago
Select True or False: Pi bonds are covalent bonds in which the electron density is concentrated above and below a plane containi
anzhelika [568]

Answer:

True

Explanation:

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Pi bonds usually occur by sideways overlap of atomic orbitals and this leads to both double and triple bonds.

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3 years ago
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Mkey [24]

Answer:

Explanation:

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In the given question, the hydrogen bromide provides the electrophile while the bromide is the nucleophile. The mechanism proceeds with the attack of the electrophile on the carbon, followed by deprotonation. This process is continued with a formation of carbocation and the bromide(nucleophile) finally bonds to the carbocation to form a stable product.

The first diagram showcases the possible various starting molecules for the synthesis while the second diagram illustrates their mechanism.

6 0
2 years ago
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