In nuclear reactions, what is conserved? (2022)

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Question: In nuclear reactions, what is conserved? (2022)

Options:

Correct Answer: Mass and charge

Exam Year: 2022

Solution:

In nuclear reactions, both mass and charge are conserved, which is a fundamental principle of physics.

In nuclear reactions, what is conserved? (2022)

In nuclear reactions, what is conserved? (2022)

Step 1: Understand what a nuclear reaction is. It involves changes in the nucleus of an atom.
Step 2: Learn about conservation laws. These are rules that tell us certain quantities remain constant in a reaction.
Step 3: Identify the two main quantities that are conserved in nuclear reactions: mass and charge.
Step 4: Mass conservation means that the total mass before the reaction equals the total mass after the reaction.
Step 5: Charge conservation means that the total electric charge before the reaction equals the total electric charge after the reaction.
Step 6: Remember that these conservation laws are fundamental principles in physics, meaning they apply to all nuclear reactions.

Conservation of Mass – In nuclear reactions, the total mass of the reactants equals the total mass of the products, although mass can be converted to energy according to E=mc².
Conservation of Charge – The total electric charge before and after a nuclear reaction remains constant, meaning that the sum of positive and negative charges is conserved.