Why is it important to use proper safety equipment when handling acids? a. acids taste sour. b. acids feel slippery. c. acids contain hydrogen. d. acids can burn skin.

Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle

What does the process of natural selection involve

What must happen before a body cell can begin mitotic cell division