1pt In a calorimetery experiment, a researcher may burn a sample of food, which heats a sample of water. This
procedure illustrates which energy transformation?

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

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0