What makes alkali metals a family?

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

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.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?