Question 4: C
question 5: D
Answer:
Peropanamide participates in hydrogen bonding because it has the highest boiling point.
N, N-dimethyl formamide has the lowest boiling point due to the lack of hydrogen bonding
Explanation:
Compare N-methylacetamide with its amide isomers propanamide and N,N- dimethylformamide. Which do you predict has the highest boiling point? The lowest?
Peropanamide participates in hydrogen bonding because it has the highest boiling point.
N, N-dimethyl formamide has the lowest boiling point due to the lack of hydrogen bonding
-Acids release hydrogen ions
-Acids taste sharp
-Some Acids can cause serious burns
The answer is "All of the above"
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C) convection cells (currents)
Explanation:
The movement of warmer cooler mantle rocks creating a circulation within the mantle is called a convection cell. These are the forces that drives the plate over asthenosphere.
- Convection is form of heat transfer predominant in liquids and gases.
- The mantle is molten and heated from heat within the core and the decay of radioactive bodies.
- Hot bodies are light and tend to be more buoyant. This causes warm mantle to rise to the surface.
- The cold part are denser and heavier, they sink in the mix.
- This creates pockets of circulation pattern within the mantle called convection cells.
Learn more:
Lithosphere brainly.com/question/9582362
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If there is no atmosphere on the planet or the heavenly body on which we are the observers, then there would be no scattering of the sun's light and hence, the sky would aappear black. For example, if we are on the moon, the sky appears black ,unlike on earth(where it appears blue) because there is no atmosphere on moon.