Copper has TWO isotopes in the following abundance Cu-63 =69% and Cu-65 -31%. What is the relative atomic mass of Copper

How many moles of n2 you have in 476 l sample at stp?

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.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt