The electrolysis of water is being done in a petri with a solution of salt water, phenolphthalein and two graphite electrodes. The electrodes are attached to a battery and a current begins to flow. After a few seconds bubbles start to form at each of the electrodes. In addition to the bubbles, a pale pink color begins to emerge at one of the electrodes. Which electrode is oxidation occurring and which electrode is reduction occurring. Justify, using experimental evidence.

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.

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?

The volume of a single vanadium atom is 9.29×10-24 cm3. what is the volume of a vanadium atom in microliters?