In some antacids the calcium carbonate is the active ingredient. One of the inert ingredients is silicon dioxide. What are their formulas? Are these compounds ionic or covalent? Look at the labels of 5 other food and/or health products where you can recognize the names of some of the components. Provide the list of 5 different components in total (one from each of the 5 sources) and identify them as ionic or covalent. Do a web search for each component and give two other properties for each.