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Llana [10]
2 years ago
12

Balancing nuclear equations is slightly different than balancing chemical equations. The major difference is that in nuclear rea

ctions we must account for protons, neutrons, and electrons, as well as write out the symbols for various chemical elements. In a nuclear equation, the products and reactants are symbolized as AZX where X is the chemical symbol for the element, A is the mass number, and Z is the atomic number. There are two main rules to remember when balancing nuclear equations:
The total of the superscripts (mass numbers, A) in the reactants and products must be the same.
The total of the subscripts (atomic numbers, Z) in the reactants and products must be the same

What is the value of A in the following nuclear reaction?

237Np93 →233 Pa91 +AZX
Chemistry
1 answer:
vesna_86 [32]2 years ago
5 0

Answer:

The correct answer is - 4.

Explanation:

As we known and also given that the total of the superscripts that is mass numbers, A in the reactants and products must be the same.The mass of products A can understand and calculated by this -

The sum of the product mass number of products = mass of reactant

237Np93 →233 Pa91 +AZX is the equation,

Solution:

Mass of reactants = 237

Mass of products are - Pa =233 and A = ?

233 + A = 237

A = 237 - 233

A = 4

So the equation will be:

237Np93 →233 Pa91 +4He2 (atomic number Z = 2 ∵ difference in the atomic number of reactant and products)

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Answer:

A) An ionic compound dissolved in a polar solvent

Explanation:

Potassium Chloride's chemical formula is KCl. Most ionic compounds are formed between a nonmetal and a metal. In this case, potassium is acting as the metal and chloride is the nonmetal. Water is a polar solvent due to the electronegativity of the oxygen in the molecule creating a partial negative pole, leaving the hydrogen atoms partially positive. Hence, A is your best answer.

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2 years ago
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When bases dissolve in water they release what type of negative ion?
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There are exceptions, such as ammonia NH3, which acts as a base but does not produce OH- ions. There are three definitions of acids and bases (Arrhenius, Bronsted-Lowry, and Lewis) and each one looks at acid/base characteristics differently. OH- donation is the Arrhenius definition.
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Perform the following mathematical operation and report the answer to the correct number of significant figures? ( I have watche
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0.008 ÷ 51.3 = 0.0002

Sig Figs

1

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Decimals

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0.0002

Scientific Notation

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E-Notation

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What do climatologist study about fossil seashells in rock sediments to learn about climate
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Answer:

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,.,

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Answer:

Explanation:

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3 years ago
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