Which of the following statements is true about a light year? it is used to measure long periods of time it is used to measure long distances in space the distance to proxima centauri it is a term used only in science fiction

How does the motion of particles in a gas change as the gas cools

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

What type of organic molecule comprises the majority of a potato?