How many significant figures does 0.070 have?

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

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

What relationship exists between an enzyme and a catalyst?