Kercise n°4: a) What are the particles that make up a carbon 14 atom? Write the symbol of its nucleus.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology