Calculate the volume of oxygen in excess when 20cm3 of hydrogen is sparked in 15cm3 of oxygen at a temperature of 1500C according to the following equation:
2H2(g) + O2(g)  2H2O(g)

Why are people not able to scuba dive in the deep part of the ocean

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

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?