Which statement best describes a surface wave? O A. It occurs at the boundary of two different mediums, such as air
and water.
B. It forms when matter vibrates in a direction that is perpendicular
to the direction of the motion of the wave.
C. It forms when matter vibrates in a direction that is parallel to the
direction of the motion of the wave.
D. It forms when electric and magnetic fields vibrate perpendicularly
to each other.
UBN

About 8 gallons of fuel will be used. (8.08)

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

Remember that rust prevented by placing a sacrificial electrode in electrical contact with the iron. the sacrificial electrode must be composed of a metal that  oxidizes  more easily than iron (that is, it must be below iron in table 18.1).

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