Using the phase diagram for CO2, what phase is carbon dioxide in at -20°C and 1 ATM pressure? A. It is at its boiling point
B. It is in the liquid phase
C. It is in the solid phase
D. It is in the gas phase

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)