What should be done with an unused or used chemical once it has been taken from the original container?

What mostly contains the atoms of two or more types of elements. The number of atoms can range from two to many thousands

What are the advantages and disadvantages of fission?

How long must a constant current of 50.0 a be passed through an electrolytic cell containing aqueous cu2 + ions to produce 5.00 moles of copper metal? how long must a constant current of 50.

When practicing for your oral presentation, you should do all of the following except: Hold any notes or index cards low and below your waist. Speak very quickly to complete the presentation in a short time.

What happens during all chemical changes? Select one: A. Matter changes to a different phase. B. Atoms rearrange to form new substances. C. Protons turn into electrons. D. Molecules split apart.

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power