Azero-order reaction has a constant rate of 4.40×10−4 m/s. if after 45.0 seconds the concentration has dropped to 1.50×10−2 m, what was the initial concentration? express your answer with the appropriate units.

We have that the initial concentration  is mathematically given as

1 * {10}^{-11} M

Concentration

Generally the equation for the PH  is mathematically given as

Therefore

1 * {10}^{-11} M

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The correct answer is d

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