Astudent walks 2 km in 30 minutes. what is the student’s average speed in km/h?

What does x represent in the formula for the compound xcl4?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

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?