Which describes the role of oxygen in photosynthesis and cellular respiration?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

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

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?