A pitcher throws a ball and it reaches home plate 60 ft away in 0.41 seconds. What is the approximate speed of the ball?
O 100 ft/s
50 ft/s
O 146 ft/s
0 24.6 ft/s

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o