Reacción en la cual las sustancias reaccionantes son un compuesto y un elemento, y las sustancias producidas, un elemento y un compuesto diferentes de los anteriores.

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

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.