When a gas is burned, it releases 5265.2 cal of heat and does 784.91 cal of work. what is the change in energy, in kJ, for the gas?

Why is permeable soil best for plants that need a lot of drainage?

This drawing shows a human body system. what is the primary function of this body system?

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury