jy

How do you determine if arcsin(sin(-2π/7))=-2π/7?

Using the equation CaCo3(s) -> CaO(s) + CO2(g), if 25.0 ml of carbon dioxide is produced at 0.85 atm and 22 degrees Celsius, what mass of calcium carbonate is decomposed?

Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, how long will it take to fill the tank from empty to full?

120