Which reaction would cause a decrease in entropy? A. CO(g) + 3H2(g) → CH4(g) + H2009) B. 2NH3(9) ► N2(g) + 3H2(9) O C. 2NOCI(9) + 2NO(g) + Cl2(9) D. 2CC14(9) + O2(g) → 2C0C12(9) + 2Cl2(9)​

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

What effect might melting sea ice have for people who live in coastal areas?