A. Draw the Lewis structure for ethene (ethylene), H2CCH2, a small hydrocarbon with a C=C double bond.
b. Based on this structure, predict the H–C–H bond
angle. Explain your reasoning.
c. Sketch the molecule showing the predicted bond
angles

the answer is b. dilution

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 : )

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.