During a process called photoact, give up an electron as a part of the light-dependent reactions.

Noble gases are the most reactive elements on the periodic table. a. true b. false

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.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?