The theoretical yield of a particular reaction is 167. 5 grams of product. If after performing the reaction in the laboratory,

you recovered 153. 2 grams of product, what is your percent

yield?

a) 1. 093%

b) 109. 3%

c) 0. 9146%

d) 91. 46%

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?