Asodium ion has 11 protons, 12 neutrons, and 10 electrons. which of the following is true? answer options with 5 options a. sodium's atomic mass is 33 amus. b. sodium's atomic number is 21. c. sodium has a net negative charge. d. sodium has a net positive charge. e. sodium has gained a neutron.

This drawing shows a human body system. what is the primary function of this body system?

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

Calculate the concentration of all species in a 0.165 m solution of h2co3.