PLEASE PLEASE HELP!!! Make 250 mL of a 2.570 M solution of CoCl2. Dilute the solution from the first part to make 150 mL of a ___ M solution.
How many mL from the first solution do you need?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum