How many moles of CO2 are there in a 50.0 L sample of the gas at a pressure of 100.0 kPa and a temperature of 50°C? The ideal gas constant is 8.31 L x kpa/mol x k

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

At element makes up all organic compounds?