Many members of a community are experiencing similar symptoms. After
getting antibiotics, most people got better within a couple of days. Their
symptoms were probably due to an exposure to a(n) ___ hazard.

Where are the following questions

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

2licl + 3o2 i yook the test and it was correct.