Identify and briefly describe two ecosystems in your community that are beyond schoolyard

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

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.

Is a chemical message sent by another individual.