Cobalt, a transition metal, forms both the Co2+ and Co3+ ions. Which of the following are the correct formulas and names for the
oxides formed by the two different ions? (You’ll have to choose more than one) a) CoO3, cobalt(III) oxide
b) CoO3, cobalt(II) oxide
c) Co2O3, cobalt(III) oxide
d) CoO3, cobalt(II) oxide
e) CoO3, cobalt(III) trioxide
f) CoO, cobalt(II) oxide
g) Co2O, cobalt(II) oxide
h) Co2O, cobalt(III) oxide
Well to solve this problem, we must remember that Oxygen
in ionic form is Oxide O2- (an electric charge of negative 2). Hence the
correct formulas and names taking into account the charge of Oxygen are:
D. Use x-ray radiation to see if there are any fractured bones.
Explanation:
The football player may have fractured a bone while he was practicing or playing, so it is best for the doctor to check if the player broke his bone or fractured it.
