why do you think that scientist add excess of one or more chemicals when performing a reaction rather than combine the exact stoichionetric ratio

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds

How do you determine the percent yield of a chemical reaction