M an unknown substance is cooled from 25 °c to 10 °c. the table below shows the state of the substance at different temperatures. time (minutes) temperature (degrees celsius) state of matter 0 25 liquid 2 23 liquid 4 18 6 18 8 18 10 15 solid 12 10 solid which statement is correct about the unknown substance? its freezing point is 23 °c. its freezing point is 18 °c. the substance sublimes at 23 °c. the substance exists as a gas at 18 °c.

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure