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

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule