Q- Can be implement the full adder from 2 half adders?
Ans: Yes we can implement the Full Adder using 2 half adders and one OR gate as follow:

And the circuit diagram is as:
Q- Can be implement the full adder from 2 half adders?
Ans: Yes we can implement the Full Adder using 2 half adders and one OR gate as follow:
And the circuit diagram is as: