Answer:
C. connecting an active metal to designate the pipe as the cathode in an electrochemical cell.
Explanation:
Cathodic protection involves a method to manage the accelerated corrosion of a metal surface by designating it as the cathode within an electrochemical cell. This is accomplished by attaching the protected metal to a more sacrificial metal, which acts as the anode.
This method helps to preserve the metal by introducing a highly reactive metal that serves as the anode, supplying free electrons. By adding these free electrons, the active metal gives up its ions, protecting the less reactive steel from corrosion.
Answer:
The work done in this process will be considered Negative.
Explanation:
The energy transferred by the system to the environment is negative
Therefore, if work is done on the system, it is labeled as positive. Conversely, when work is done by the system, it is regarded as negative.
In this scenario, the argon gas is expanding, and the work is exerted by the system into the surroundings (container), making the sign Negative.
Thus, the result for the work pertaining to this process will carry a Negative sign.
Students dealing with ionic bonds comprehend better how to convey what the model should showcase.
Explanation:
- Upon dissolving ionic compounds in water, the compounds separate into their constituent ions via a process called dissociation.
- The ions become attracted to water molecules, which carry a polar charge.
- If the pull between the ions and the water molecules is strong enough to disband the ionic bonds, the compound dissolves.
- The ions disperse in the solution, each surrounded by water molecules to inhibit reattachment.
- The ionic solution forms an electrolyte, allowing it to conduct electricity.
- In contrast, while covalent compounds do dissolve in water, they separate into molecules, not individual atoms.
- Water acts as a polar solvent, yet covalent compounds are generally nonpolar.
- This implies that covalent compounds often do not dissolve in water and instead form a distinct layer on top of the water.
Answer: The Answer is A.
Explanation:
The energy of a photon is directly related to its electromagnetic frequency, meaning it is inversely related to the wavelength. A higher frequency results in greater energy for the photon. Conversely, a longer wavelength corresponds to lower energy levels.
Hope this Helps!
You can find further information regarding each unit of measurement: the molecular weight of Copper(I) Oxide or grams. The molecular formula for Copper(I) Oxide is Cu2O. The SI base unit for the amount of substance is the mole. One mole translates to 1 mole of Copper(I) Oxide, equating to 143.0914 grams.
