Which statement describes the reactions in an electrochemical cell? 1.Oxidation occurs at the anode, and reduction occurs at the cathode.
2.Oxidation occurs at the cathode, and reduction occurs at the anode.
3.Oxidation and reduction both occur at the cathode.
4.Oxidation and reduction both occur at the anode.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond, allowing amines to be more soluble than alcohols.