List the elements tested in order of decreasing ease of oxidation (most reactive element to least reactive element, this is called an activity series): Elements: Cu, Mg, Pb, Zn, Ag, H

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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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i wish i could but this one is weird give me abc and i can solve it.

the answer is c.the valence of the atoms combine .