Billy drives a water balloon from the roof of his house since the balloon began with an original velocity of zero how far above ground was the balloon drop if it’s a 2.5 seconds to hit the ground

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

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