Use the equation to complete the activity.

1 answer:

6 0

The reaction is balanced because the number of atoms of each element or particle is equal on both sides of the equation.

<h3>What is a nuclear reaction?</h3>

Nuclear reaction is the process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.

The reaction products in a nuclear reaction may contain a different element or a different isotope of the same element.

According to this question, the following fission reaction of uranium is given below:

238/92 → 234/90Th + 4/2α

Based on the above reaction, the sum of the atomic mass and atomic number of the products is 238 and 92 respectively. This means that the equation is balanced.

Learn more about nuclear reactions at: brainly.com/question/13315150

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4 moles of hydrogen react with 5 moles of oxygen to form water, identify the excess reagent?

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Answer:

Excess Reagent = oxygen

Explanation:

Limiting reagent: The substance that is totally consumed when the reaction is completed.

Excess reagent: The substance left after the limiting reagent is consumed completely

The balanced chemical equation for formation of water is as follow:

$2H_{2}+O_{2}\rightarrow 2H_{2}O$

This means when 2 moles of hydrogen reacts with 1 mole of oxygen, 2 moles of water is produced.

Hence the ratio in which hydrogen and oxygen gas reacts is 2:1

Now if 2 mole hydrogen require 1 mole of oxygen ,then 4 mole hydrogen need 2 mole of oxygen.

$H_{2}:O_{2}=2:1$

$H_{2}:O_{2}=4:2$

Here 5 mole of oxygen is reacting but only 2 mole is required .

Oxygen is in excess.

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Answer:

This snip might help...it depends :)

Explanation: