When should a line graph be used?

Which orbitals form a pi bond? a.the s orbital and three p orbitals b.the s orbital and two p orbitals c.overlapping p orbitals d.overlapping hybrid orbitals

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?