A scientist tests a water sample that was collected from a river. The results of the test are described below:
• The water is clear.
• The water contains dissolved calcium.
How should this water sample be classified?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

How to convert a density of 0.791g/cm3 to lb/ft3

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?