The step to be completed first while using the half-reaction is balancing the equation. Thus, option B is correct.
The half-reaction is the oxidation or the reduction reaction of the redox reaction. The oxidation is given as the loss of electrons, and reduction is given as the gain of electrons.
<h3>How do you balance a half-reaction?</h3>
The half-reaction in the cell consists of the change in the electrons and the oxidation state of the elements. The oxidation and reduction reactions are balanced by inserting the equation.
The first step in using the half-reaction is the balancing of reaction. Thus, option B is correct.
Learn more about half-reaction, here:
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Answer:
Magnesium oxide is a type of magnesium mineral supplement that is mostly made of magnesium—it actually contains more magnesium than other magnesium supplements. Magnesium oxide is acquired by burning magnesium with pure oxygen, but this method is quite costly.
resource: https://www.verywellhealth.com/magnesium-oxide-benefits-4184809
The answer is D. (2,2,2,1)
Answer:
Vinegar has 4.09% of acetic acid.
Explanation:
The neutralization reaction is:
Each mol of KOH reacts with each mole of acetic acid so the quantity of moles of acetic acid is:
The mass of acetic acid is:
0.01702 mol×60.02g/mol=1.0215 g Acetic Acid
Finally, the percentage is:
%=1.0215 g Acetic Acid÷25g vinegar(solution)=4.09%
Answer:
74.99g
Explanation:
Mass of a substance can be calculated by using the formula;
mole = mass ÷ molar mass
mass = molar mass × mole
According to this question, 37.2 moles of hydrogen gas is given.
Molar mass of hydrogen gas (H2) = 1.008(2) = 2.016g/mol
mass = 2.016 × 37.2
Mass of H2 = 74.995
Mass = 74.99g