Yes, they can have both positive and negative oxidation numbers.
Answer:
-191
Step-by-step explanation:
Replace variables with corresponding value.
3(3) + (-5)^2 - ((3)(-5))^2
Solve exponent.
3(3) + 25 - 225
Multiply.
9 + 25 - 225
Combine like terms.
-191
Answer:
x = 27
Step-by-step explanation:
39/26 = x /18
cross multiply
26x = (39)(18)
26x = 702
x = 27
Answer:
No
Step-by-step explanation:
it doesnt add up to 180 degrees
