Mixture containing 50 grams of carbon and 75 grams of oxygen is sealed in a flask. the total mass of the system is 225 grams. the flask is heated to cause the carbon and oxygen to react. the sealed flask is massed. what is the mass of the sealed flask?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of