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Serggg [28]
1 year ago
10

what is meant by cathodic protection? a. steel is coated with a layer of paint b. iron in steel is oxidized to form a protective

oxide coating c. steel is coated with zinc because zinc is more easily oxidized than iron. d. a strip of magnesium is attached to steel because the magnesium is attached to steel because the magnesium is more easily oxidized than iron.
Chemistry
1 answer:
Serjik [45]1 year ago
7 0

Rust can be avoided by using a procedure called cathodic protection. A metal like zinc or magnesium, which give up electrons to oxygen more quickly than iron does, is linked to the iron that has to be shielded. The iron won't corrode in this case, only the so-called sacrificial cathode.

By providing a highly active metal that may function as an anode and provide free electrons, the cathodic protection approach for steel maintains the metal. The active metal sacrifices its ions to introduce these free electrons, which prevents the corrosion of the less active steel. The simplest way to use CP is to join the metal that needs to be protected with another metal that will operate as the electrochemical cell's anode and is more susceptible to corrosion.

Learn more about Iron here-

brainly.com/question/18500540

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lara31 [8.8K]

the products formed from the reaction

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3 years ago
In an ideal situation where no heat energy is produced, what is the relationship between the chemical energy provided by the bat
kow [346]

Answer:

See explanation

Explanation:

The principle of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another. Hence, chemical energy in a battery can be converted to electrical energy.

Usually, the conversion of energy from one form to another is not 100% efficient according to the second law of thermodynamics. Some energy is wasted in the process, sometimes as heat.

Hence, in an ideal situation where no heat energy is produced; all the chemical energy is converted to electrical energy (100% energy conversion). There will be no energy loss if no heat is produced.

6 0
2 years ago
Define the following: Bronsted-Lowry acid - Lewis acid- Strong acid - (5 points) Problem 6: Consider the following acid base rea
Allushta [10]

Answer: Yes, HCl is a strong acid.

acid = HCl , conjugate base = Cl^- , base = H_2O, conjugate acid = H_3O^+

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

Yes HCl is a strong acid as it completely dissociates in water to give H^+ ions.

HCl\rightarrow H^++Cl^-

For the given chemical equation:

HCl+H_2O\rightarrow H_3O^-+Cl^-

Here, HCl is loosing a proton, thus it is considered as an acid and after losing a proton, it forms Cl^- which is a conjugate base.

And, H_2O is gaining a proton, thus it is considered as a base and after gaining a proton, it forms H_3O^+ which is a conjugate acid.

Thus acid =  HCl

conjugate base = Cl^-

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8 0
3 years ago
The percent abundance of each isotope tells you how many of each kind of isotope exist in every 100 particles. What does relativ
fiasKO [112]

Answer:

The answer is Relative plenitude alludes to the amount of a specific isotope is available in a given measure of test.  

Explanation:

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3 0
3 years ago
If water is added to a 0.70 molar solution of CuSO4 what will change
lana [24]

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.

7 0
2 years ago
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