Wave speed = frequency x wavelength
= 100 x 0.3
= 30 m/s.
Hope this helps!
c) Current cannot flow
Reason: Because the switch is not closed.
Answer : The equilibrium concentration of
is, 0.50 M
Explanation : Given,
Initial moles of
= 0.65 mole
Volume of solution = 1.0 L
Moles of
at equilibrium = 0.15 mole
The balanced equilibrium reaction will be,

Initial moles 0.65 0 0
At eqm. (0.65-x) x x
Moles of
at equilibrium = x = 0.15 mole
Moles of
at equilibrium = x = 0.15 mole
Moles of
at equilibrium = (0.65-x) = (0.65-0.15) = 0.50 mole
Now we have to calculate the concentration of
at equilibrium.
Formula used : 



Therefore, the equilibrium concentration of
is, 0.50 M
Answer:
C. Do the atoms that make up the substance have nuclei that split apart over time
Explanation:
Answer:
B products, reactants
Explanation:
The energy of the reactants is the leftmost letter on the graph given by A, and the energy of the products are given by the rightmost letter on the graph, C.
C is higher in energy than A since it is higher on the diagram, and thus it has more energy. This means the products have more energy than the reactants.