Which of the following is an example of the transformation of gravitational potential energy into motion energy (kinetic energy)?

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?

Can you guys answer these questions i need it before 1: 00pm