Which extinction factors do you think cause the least extinctions? Why?

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.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as