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3 years ago

Write a balanced equation for the nuclear reaction in which neon-23 decays to form sodium-23

Chemistry

1 answer:

Bond [772]3 years ago

7 0

Explanation:

The nuclear reaction is a radioactive decay by the emission of a beta particle.

Beta emission increases the mass number of a nuclei.

A beta particle is a particle that closely resembles an electron. When a particle decays by emitting beta particles, the mass number remains the same but the atomic number increases.

Beta particle is designated as °₋₁β

²³₁₀ Ne ⇒ ²³₁₁Na + °₋₁β + energy

learn more:

Nuclear equation brainly.com/question/10094982

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1. Water is an amphoteric substance. In any sample of water some of the moles

umka2103 [35]

Answer:

2H₂O (l) ⇄ H₃O⁺ (aq) + OH⁻(aq)

Explanation:

The autoionization of water is defined as a chemical reaction where there is an equilibrium in which two water molecules react producing an hydronium ion and a hydroxide ion. This is also defined as the autoprotolysis of water, and is based on its amphoteric nature.

The substance that can donate protons as well as receive them is defined as amphoteric. In this way, the water behaves amphoteric as it donates a proton as an acid of Brownsted Lowry or if it receives a proton, being a base.

NH₃ + H₂O ⇄ NH₄ + OH⁻ Kb

In this case, water behaves as an acid, it donates the proton to ammonia (a base)

CH₃COOH + H₂O ⇄ CH₃COO⁻ + H₃O⁺ Ka

For this case, water behaves as a base, it recieves the proton from the acetic acid (acid)

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3 years ago

How many molecules of N2O4 are in 76.3g N2O4? The molar mass of N2O4 is 92.02 g/mol.

Murrr4er [49]

Answer:

4.99*10²³ molecules of N₂O₄ are in 76.3 g of N₂O₄

Explanation:

Avogadro's Number is the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension. Avogadro's number applies to any substance.

You know that the molar mass of N₂O₄ is 92.02 g/mol, and you have 76.3 g. Then you can apply the following rule of three: 92.02 grams are present in 1 mole of the compound, 76.3 grams in how many moles are they?

$amount of moles= \frac{76.3 grams*1 mole}{92.02 grams}$

amount of moles= 0.83 moles

Then, you can apply another rule of three: if by definition of Avogadro's number 1 mole of the compound has 6.023*10²³ molecules, 0.83 moles of the compound, how many molecules will it have?

$amount of molecules= \frac{0.83 moles*6.023*10^{23}molecules }{1 mole}$

amount of molecules= 4.99*10²³

<u><em>4.99*10²³ molecules of N₂O₄ are in 76.3 g of N₂O₄</em></u>

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3 years ago

The combining of waves as they overlap is known as...

Inga [223]

The question to your answer would be either a or C

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3 years ago

At its closest approach to the sun, Pluto is less than 30 AU from the sun. Because Pluto is approaching that point now, which pl

MA_775_DIABLO [31]

Neptune: its the 8th planet and since Pluto isn't a planet anymore Neptune is the farthest planet from the sun with a distance of around 2.8 billion miles (4.5 billion km) or (30.07 AU)

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3 years ago

When two species A and B form an electron-pair bond and A does not provide its electrons for bonding, the bond present between A

vichka [17]

Answer:

Ionic

Explanation:

If A does not have electron to bond, it just receives one electron from B.

It can´t be covalent because A don´t have any electrons to bond with B.

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3 years ago