Answer Happy

1 4 points An atom of the fictitious element Unobtanium (Ub) has an isotope that is $Ub. How many protons, neutrons, and electrons does it have? 32 protons, 32 neutrons, 32 electrons 76 protons, 32 neutrons, 76 electrons 32 protons, 108 neutrons, 44 electrons 32 protons, 44 neutrons, 32 electrons 32 protons, 76 neutrons, 32 electrons 2 points In order for the Combined Gas Law to be used, what variable must be the same under both sets of conditions? volume temperature the amount (number of moles) of gas P. V, and I must all be constant pressure 3 point To a calorimeter containing 300.0 g of water at 20.00', 10.65 g of NaOH, also at 20.00'C was added. The temperature of the solution, increased to 28.50 c. If the specific heat of the mixture is 4.184 Jg* °, and the small heat capacity of the calorimeter is ignored, what is the heat evolved, per mole of sodium hydroxide? 45.5 -37.4 kJ 415 kJ -153 kJ 90.5 kJ