If the mass of aluminum is 1.80 g and iodine is 2.30 g how much of the excess reagent remains after the reaction 2Al + 3I2 > 2AlI3

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

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it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.