6. Write the expressions for Kc, and KP if applicable, for the following reversible reactions at equilibrium: (1.5 Marks) (a) HF(aq) + H2O(l) H3O+(aq) + F-(aq)
(b) 2NO(g) + O2(g) 2NO2(g)
(c) CH3COOH(aq) + C2H5OH(g ) CH3COOC2H5(g) + H2O(l)

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space