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Which device uses ac current to operate?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.