Which of these images best represents the conservation of mass?

What is the mass of each element in a 324.8 sample of co2

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

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.