Lead nitrate can be decomposed by heating. Theoretically, the chemical reaction should produce 6.7 g of PbO. What is the percent yield of the reaction if 6.43 g of PbO are produced when the lead nitrate is heated? 2Pb(NO3)2(s) -> 2PbO(s) + 4NO2(g) + O2(g)

A-44%

B-56%

C-67%

D-82%

E-96%

F-100%

The correct answer is b

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

Contained in chromosomes which are located in the nucleus of the cell.