A single replacement reaction will occur when a piece of magnesium is dropped into a solution of nickel(?) nitrate. Todd reacted 3.582 g of anhydrous nickel(?) nitrate with an excess amount of magnesium metal. The nickel product of the reaction was dried and had a mass of 0.836 g.-Calculate the moles of nickel formed.-Calculate the mass of nitrate in the original anhydrous nickel(?) nitrate compound.-Calculate the moles of nitrate in the original anhydrate.-Calculate the nitrate to nickel mole ratio, and write formula with the Roman #. -Write the overall balanced chemical equation for this reaction.-Write the balanced net ionic equation for this reaction.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

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chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.