Answer:
C. paramagnetic.
Explanation:
1s2 2s2 2p6 3s2 3p6 4s2 3d3 It is Vanadium.
It has 3 unpaired d- electrons, so it is paramagnetic.
Answer: Oxygen is the limiting reagent.
As can be seen from the given balanced equation:
3 moles of reacts with 1 mole of
1.52 moles of reacts with= of
Thus is the limiting reagent as it limits the formation of products. (0.91-0.51)= 0.40 moles of will remain as such and thus is an excess reagent.
letter C I'm not sure to my answer but hope it can hrlp
it's the first two