How much Chlorine is released when 50g of MnO2 reacts with excess of HCl??? Pls help

Which compound contain an iron with a 3+ charge

What is the mass of phosphorous in a 51-kg person

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