I think it’s D the melting point everything else doesn’t really make sense
The cost for CHOPS is in the sand and the extraction of the oil from sand.
The cost for SAGD is the generation of steam.
The benefit for CHOPS is the low cost.
The benefit for SAGD is high extraction efficiency.
The other factors that could affect the decision are fuel cost and the required purity of the oil.
Answer:
The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds. When discussing the octet rule, we do not consider d or f electrons.
Explanation:
The electronic configuration of Al is 2,8,3. So therefore Aluminum has 3 valance electrons available.
We know this because of the number of electrons in the outermost shell.
I hope this helps