carbon-14 has a half-life of 5,730 years. how long will it take for 112.5 g of a 120.0-g sample to decay radioactively?

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Light waves can move through , but they travel fastest when they move through a(n) .

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride