In an experiment you are asked to react hydrochloric acid with sodium hydroxide. when measuring the volume of the
reactants, which instrument would give the greatest precision?
100 ml graduated cylinder
250 ml erlenmeyer flask
100 ml beaker
200 ml beaker

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

In salt water solution,the salt is the blank

What is true for a substance that releases energy