What is the volume at STP of 2.66 mol of methane (CH4) gas

In which reaction is precipitation occurring?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.