Answer:
When two atoms have shared electrons, it is not distinguishable from what atom they are because they are shared in the same orbit, it is called a covalent bond.
Step-by-step explanation:
Atoms in a covalent bond share one or more electrons in the last of their orbitals, the number of electrons in the last orbital will depend on the element in question.
Answer:

Step-by-step explanation:
a is a¹ and you have a^7 in multiplication you add the exponents. If you were to have a numerical value, you would replace a and calculate. If a = -5 then: a^8 =

which is = 390 625
Answer:
Negative
Step-by-step explanation:
-4 + 3 = -1
-3 + 5 = 2
if you scramble the leters, you get negative, and -1 is a negative number
the answer is a because complement angles have a sum of 90 degrees