Balance these equations: hgo → hg + o2 na + hcl → h2 + nacl k + cl2 → kcl c2h6 + o2 → co2 +h2o c5h12 + o2 → co2 + h2o c6h14 + o2 → co2 + h2o

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.