let us consider each statement one by one
a) catalysts are the substance which alter the reaction pathway where activation energy of reaction is less that the un catalyzed reaction. they are not used up in the reaction . the catalyst is restored in the reaction.
b) as mentioned above, the catalyst speed up reaction by lowering the activation energy
c) during a reaction the reactants are consumed up and products are formed. so there is a decrease in concentration of reactant.
thus all the above statements are true.
d) the rate of decrease in concentration of reactants depends upon the coefficient of reactant in balanced chemical reaction.
here the rate of decrease in concentration of hydrogen will be double the rate of decrease in concentration of oxygen.
the correct answer is an electrolyte.
an electrolyte is a term, that is, used to indicate charges, which the solutions comprise in a wet cell battery. a wet cell battery refers to the original kind of rechargeable battery. it is usually found in electric utilities, aviation, cell phone towers, and energy storage. the battery comprises a liquid electrolyte like sulfuric acid. on the other hand, a dry cell battery does not comprise a liquid. smaller dry-cell batteries like lithium ion or alkaline, are generally used in portable electronics, like phones, toys, and laptops.
s + o2 = so2
1 mole s 1 mole so2
( moles s ) 15.0 moles so2
moles s = 15.0 x 1 / 1
moles s = 15.0 / 1
= 15.0 moles s
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