When you look at a chocolate chip cookie, which is older-- the cookie or the chocolate chip? explain.

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

What is the value of the standard enthalpy of formation of an element in its most stable form?