When a substance dissolves in water, heat is released.?

At stp, what is the volume of 1 mole of co2?

Word equation for k+ h2o yield koh + h2

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)