This graph shows a train going around a curve at the beginning of the graph, near time = 0. as time passed, what most likely happened? a) the curve straightened out. b) the track continues to curve. c) the train begins to speed up. d) the train begins to slow down.

A)The curve straightened out.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na