156 g sample of steel has a volume of 20.0 ml. what is the density of the steel sample

What forms when chemical reactions combine pollution with sunlight?

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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.