Which describes a radioisotope? A. An isotope of an element that emits radio waves
B. An isotope of an element that is radioactive
O C. An isotope of an element that has a stable nucleus
D. An isotope of an element that is not radioactive
SUBN

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

How does litmus paper indicate an acid?

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset