Answer:
Both are similar concepts.
Sound is the vibration of air particles (compression and expansion) the can reach your ears. But you can have vibration being propagated in liquids and solids as well.
Some sounds are generated in structures, so the vibration of a structure is converted to sound in air — for instance, a loudspeaker.
Explanation:
Answer:
Explanation:
Hello!
In this case, since the differential rate law of a second-order reaction is:
Whereas A stands for NOCl and the corresponding integrated rate law is:
Thus, since we know the concentrations and the elapsed time, we compute the rate constant as shown below:
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Answer:
5=D
6=B
7=A
8=?????
1A= conduction
1B= radiation
1C= convection
3: C
4: A
Explanation:
2: The heat from the hot water is been transferred along the metal handle to the other end of the spoon by the process of CONDUCTION.
When Na2S2O3 dissolves in water, it dissociates into Na+ and S2O32- ions:
Na2S2O3 ⇒2Na+ + S2O32-
So 1 mole of Na2S2O3 generates 2 Na+s.
The moles of Na2S2O3 = volume of Na2S2O3 * molarity of Na2SO3 = 0.01L * 0.15mol/L = 0.0015 mol.
Therefore, the moles of Na+ in the solution = 0.0015mol * 2 = 0.003 mole.
The balanced chemical formula should be Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4
Therefore the coefficient of Al(OH)3 is 2!
Hope that helps :)