What happened to a liquid when it releases enough energy

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

What energy is it when you flip on a switch on a lamp

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space