It is good practice when preparing a primary standard solution to Select one or more: mix the solution for two minutes after you have added solvent to the volumetric flask. dissolve the solid in the volumetric flask when the bulb is only partially filled with solvent. weigh the solid on an analytical balance. record the volume of solvent required to dissolve the solid.

The rules of engagement (roe) working group is often used to (select all that apply.)

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

In which reaction is precipitation occurring?