The equilibrium constant, Kc, for the following reaction is 55.6 at 698 K.
H2 (g) + 12 (g)
2 HI (9)
Calculate the equilibrium concentrations of reactants and product when 0.288 moles of H, and 0.288 moles of I2
introduced into a 1.00 L vessel at 698 K.
[H2]=
[12] =
[HI] =

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

What is the percentage composition of carbon in the compound ch4