The teacher in item 10 also needs to order plastic tubing. if each of the 60 students need 750 mm of tubing, what length of tubing in meters should the teacher order?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

The concentration of ionic substances is important for the heart to beat. your heart responds to electrical impulses that travel through heart cells that are made up mostly of water. which properties of ionic compounds are important to support this function? solubility in water conductivity crystalline melting point