B. Use Hess's law and the following equations to calculate the A Hreaction for the reaction C3H8(9) + 502(9) + 3C02(9) + 4H2O(). (Show your work.) (4 points)
• 3C(s) + 4H2(9) → C3Hg(9)
AH = -103.85 kJ
• 3C(s) + 302(g) + 3C02(9)
AH=-1186.5 kJ
• 4H2(9) +202(9) + 4H2O()
AH=-1143.32 kJ

Answerstrong acids and bases completely dissociate in water.this is how strong acids and bases are defined. they will ionize 100% in solution, making a non-reversible reaction

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻