Answer:
In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles.
Answer:
Explanation:
The reaction between hydrogen and oxygen to yield water vapor has ΔH∘=− 484kJ. How much pV work is done, and what is the value of ΔE in kilojoules for the reaction of 0.50 mol of H2 with 0.25 mol of O2 at atmospheric pressure if the volume change is −5.6 L?
2H2(g)+O2(g)⟶2H2O(g)ΔH∘=− 484kJ
<span>To evaluate which system would be able to react faster, we look at the factor that could affect the reaction rate of the reaction of zinc and hydrochloric acid. First, we look at the concentrations or the amounts of the reactants. More reactant would mean that reaction rate is higher since collisions of the reactant molecules are likely to happen. We can disregard the amount of zinc since all choices have equal amount of zinc. Looking at the concentration of the hydrochloric acid, we have 0.10 M and 0.50 M. The latter would likely to have higher rate of reaction. Next, we look at the surface areas of the reactants. We neglect the effect of hydrochloric acid since they are all aqueous solution. Greater surface area would lead to higher rate since it would encourage more collisions. Powdered samples would have greater surface areas than lump samples. From the choices, most likely it would be 2.0 gram sample of powdered zinc in 0.50 M hydrochloric acid would have the higher reaction rate. Therefore, the answer is option D.</span>
Answer:
see below (I hope this helps!)
Explanation:
You are a student, therefore, the people who are the same "rank" as you are your fellow students, this makes them your peers.
The answer is all of them, so the letter choice a
