If 11.7 g of aluminum reacts with 37.2 g of copper (II) sulfate according to the following reaction, how many grams of aluminum sulfate will be produced? 2Al+3CuSO4→Al2(SO4)3+3Cu

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

"the periodic table is arranged in order of atomic number."

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )