If a total distance of 750 m is covered in a time interval of 25 s, the average speed is?

3, 974 mph

3 mph

30 mph

30 m/s

V1t2 = v2t1 is an expression of who’s law

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted