In the equation C H4 + O2 C O2 + H2 O, what are the reactants? O2--> C O2
C O2 + H2 O
C H4 + H2 O
C H4 + O2

Which of the following statements is true about planck’s law

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

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