Each of the three vinylic protons of styrene is split by the other two, and the J values are found to be Jab = 11 Hz, Jac = 17 Hz, and Jbc = 1 Hz. Using this information, draw the expected splitting pattern for each of the three signals (Ha, Hb, and Hc).

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2