What is the equilibrium constant expression for the following equilibrium reaction? CO(g) + Fe₃O₄(s)⇄ CO₂(g) + 3FeO(s)

A.) Keq= [CO₂] / [CO]
B.) Keq= [CO2]
C.) Keq= [CO2][FeO]³/ [CO][Fe₃O₄]

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g