The nucleon number of element X is 19. Element X has 10 neutrons. Which element has the same chemical properties as element X? [Proton number: O = 8, Na = 11, Cl = 17, Ar = 18]

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.