Why doesn't silicon react to hydrochloricasappp

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

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

What happens to isotopes that are unstable?