A swimming pool reading reports that chlorine is present at 130 ppm. How many grams of chlorine are present per liter of pool water?

During which time interval does the object travel approximately 10 meters

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line