Suppose you are conducting a survey regarding the sleeping habits of students. From a list of registered students, you obtain a
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The question requires one to indicate the correct terms for the reactant from left to right.
<h3>What is a reactant?</h3>A reactant is a material that enters and changes during a chemical reaction.
1. Reactant A (Gains/Loses) and electron to become product B
To produce B, reactant A loses one electron. The loss of one electron from an atom causes the atom to be oxidized.
Reactant A gives an electron to NAD+ and is transformed to B+ in the given reaction there is an increase in the positive charge. As a result, reactant A is oxidized to produce B+.
2. NAD+ becomes reduced in the process of the reaction.
NAD+ receives the electron given to it by reactant A and is reduced to NADH. As a result, the positive charge of NAD+ decreases.
3. NADH is more reduced than NAD+
NAD+ receives an electron and becomes NADH. As a result, NADH is decreased more than NAD+
4. NAD+ is in the more oxidized state compared to NADH
NAD+ has a surplus of positive charge as opposed to NADH. NAD+ must receive one electron in order to produce NADH. As a result, as opposed to NADH, NAD+ is more oxidized.
5. Reactant A is the electron donor in this reaction.
Reactant A loses one electron, resulting in positively charged B+. This electron is taken up by NAD+, which reduces to NADH. As a result, the electron donor is reactant A.
6. Reactant A is the reducing agent in this reaction.
A reducing agent is a molecule that can transfer electrons.
Such a molecule has the potential to decrease another molecule while also becoming oxidized. Reactant A is the reducing agent in the given reaction, donating an electron to NAD+.
Following the electron transfer, reactant A is oxidized to product B+, and NAD+ is reduced to NADH.
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Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.
<h3>Definition of percentage by mass</h3>The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.
In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.
The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:
Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.
So the percentage by mass is the same.
That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.
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