Describe the process and write out the balanced chemical equation for the reaction that occurs when solid calcium carbonate reacts with hydrochloric acid to form aqueous calcium chloride, carbon dioxide, and water. What type of reaction is this, and what observations might indicate that the reaction is taking place?

The bal anced chemical equation for the reaction between solid calci um carbon ate and hydro ch lor ic acid is : \n \n Ca CO 3 ( s ) + 2 H Cl ( a q ) → Ca Cl 2 ( a q ) + CO 2 ( g ) + H 2 O ( l ) \n \n This reaction is a double disp lacement reaction , also known as a met ath esis reaction . It involves the exchange of ions between the react ants , resulting in the formation of new comp ounds . \n \n The reaction can be observed by not ing the appearance of the react ants and products . For example , if a sample of calci um carbon ate is added to a solution of hydro ch lor ic acid , the resulting reaction will produce a gas ( car bon dio x ide ) and a color less a que ous solution of calci um ch lor ide . The gas will be released from the reaction mixture as b ub bles , while the color change of the solution will indicate the formation of the calci um ch lor ide salt . \n \n The bal anced chemical equation shows that the reaction is sto ichi ometric , meaning that the number of atoms of each element in the react ants is equal to the number of atoms of each element in the products . This is indicated by the use of the mole cular formula for each react ant and product , and by the presence of the same number of each type of atom on each side of the equation . </s>