Four siblings did chores during the weekend. Lin cooked eggs. Gabe raked leaves. Chris sewed buttons on a shirt. Briana dried laundry. Which of these involved a chemical change?

What happens to the atomic radius when an elctron is lost

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Tell me the iupac name of the following compounds: