Someone please help and explain, I only need c and d done Using values from Appendix C, calculate the standard enthalpy change for each of the following reactions:
(a) 2 SO2(g) + O2(- 2 SO3(g)
(b) Mg(OH)2(s) - MgO(s) + H2O(1)
(c) CH (8) + 4Cl2(g) — CCI (1) + 4 HCI(g)
(d) SiCl4(1) + 2 H2O(l) —— SiO2(s) + 4 HCl(g)

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

The disturbance is only parallel to the motion of the wave.