An electrolytic cell uses an electric current to make a nonspontaneous reaction go and is used in electroplating. The products formed in the electrolysis of water are hydrogen gas and oxygen gas. Electroplating involves the deposition of a metal layer on a material.
An electrolytic cell is a type of cell that uses an electric current to make a nonspontaneous reaction go. This means it can drive a chemical reaction in a direction that does not occur naturally. Electrolytic cells are commonly used in electroplating, where a metal layer is deposited onto a material. Therefore, all of the given options in question 17 are true about an electrolytic cell. For question 18, the products formed in the net reaction of the electrolysis of water are hydrogen gas and oxygen gas. Electrolysis of water involves the decomposition of water into its elemental components. In electroplating, the process involves the deposition of a metal layer on a material. This is achieved by passing an electric current through a solution containing metal ions, causing the metal ions to be reduced and deposit onto the material's surface.
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b) Br2 (L)
c) Ar (g)
d) Ag (s)
2. 2C(s)+3H2(g) -> C2H6(g)
3. N2(g) +3H2(g)->2NH3(g)
4. N2(g)+O2(g) -> 2NO(g)
Answer:
3. N2(g) +3H2(g)->2NH3(g)
Explanation:
Reactions can be broadly classified as endothermic and exothermic reactions. In the former, energy or heat is absorbed by the reactants and the enthalpy change of the reaction is positive. In the later, heat is released ans the enthalpy change of the reaction is negative.
For the given reactions, the enthalpy change or ΔH values are:
1. 2C(s) + 2H2(g) -> C2H4(g) ΔH = +52.4 kJ
2. 2C(s)+3H2(g) -> C2H6(g) ΔH = -84 kj
3. N2(g) +3H2(g)->2NH3(g) ΔH = -91.8 kJ
4. N2(g)+O2(g) -> 2NO(g) ΔH = +182.6 kJ
Reactions 1 and 4 are endothermic while reactions 2 and 3 are exothermic in which heat is released.
More negative the ΔH value, greater is the amount of heat released.
Thus, reaction 3, represents a change resulting in the greatest quantity of energy released
Copper have in its nucleus?
Answer: A
Explanation: A is the answer
The Copernican model that is most similar to Aristarchus' . It is a simple and accurate heliocentric model that explains planetary motion with a small set of rules and a single underlying force.
The Copernican model that is most similar to that of Aristarchus is represented by Figure 6.31(b). In this model, Earth and other planets revolve around the Sun. It is a simpler and more accurate heliocentric model, similar to Aristarchus' idea of a heliocentric solar system. The Copernican model explains planetary motion with a small set of rules and a single underlying force, demonstrating the breadth and simplicity of the laws of physics.
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The elements that can form acidic compounds are; sulfur, arsenic, selenium, antimony, silicon.
Acidic compounds are formed by nonmetals. Metallic elements form basic compounds. This means that rubidium does not form acidic compounds since it is a metal.
Also, xenon does not form compounds because it is a noble gas. Noble gases do not react with other elements to form compounds.
However; sulfur, arsenic, selenium, antimony, silicon are nonmetals and they form acidic compounds.
Learn more: brainly.com/question/14072179
The correct answer is Sulfur, Arsenic, selenium, silicon, and antimony.
b. beta particle.
c. alpha particle.
d. helium isotope.