Elaborate on the suitability of "cola" type drinks to polish chrome surfaces. a) the basic ph of cola allows for easy removing of oils. b) the phosphoric acid in cola easily removes dirt and grime. c) the neutral nature of cola allows it to function like water. eliminate d) the sugar in cola makes it likely to cause the chrome to rust.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Compare and contrast physical changes with chemical changes.

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.