When 0.42 g of a gaseous hydrocarbon A is slowly passed over a large quantity of heated copper (II) oxide, CuO, A is completely oxidised. the product are collected and it is found that 1.32 g if H2O are formed. copper is the only other product of the reaction.
Find the empirical formula of this reaction!​

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

the correct answer is:

a. formation of precipitation

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.