Which of the following examples illustrates a number that is correctly rounded to three significant figures? Which of the following examples illustrates a number that is correctly rounded to three significant figures?a. 109,526 grams to 109 500 gramsb. 103.692 grams to 103.7 gramsc. 0.03954 grams to 0.040 gramsd. 4.05438 grams to 4.054 gramse. 20.0332 grams to 20.0 grams

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

The answer will be +250