Robin is experimenting with an unknown solid. He discovers that the substance can dissolve in water. When this substance is a solid, it has a higher potential energy than when it is dissolved. What will happen during dissolution of this substance?​

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.