B. Bio
LD
Α'
1. Which correctly describes gravitational
potential energy of objects in the figure
above? sc.7.P.11.2
A A = B
B B = C
© A DC>D

The use of piers and beams to build a strong foundation for a house.

Yes it would be a physical change.

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

In any atom of any element, you will find protons and neutrons in the nucleus of any atom