Question 10 (1 point) What is the missing product in the following equation? 253 Cf 253 Es + ? 98 99 O electron/beta particle O proton neutron O alpha particle Left:0:23:06 Dalaa Al Mhazam: Attempt 1 Question 11 (1 point) A sample of water requires 542 J of heat energy in order to increase its temperature from 20.0C to 26.0C. What is the mass of the water sample? 21.6 g 0.0463 g 778 g 378 g 0.012 mol of solid sodium hydroxide is added to a 1.0 L solution of 0.01 M hydrochloric acid. What is the pH of the new solution? 0 7.2 O 11.3 2.7 3.3