1. How many atoms are in 55.78g of pure iron? How many moles of iron is it? bonus question: calculate the number of moles that are in 30.0g of carbon.

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How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Which statement best describes the flow of energy in this scenario

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.