Which properties describe elements that are nonmetal gases? Select all that apply. A) composed of an extended structure
B) composed of individual atoms or diatomic molecules
C) high melting point
I D) low melting point
E) strong attractions between particles
OF) weak attractions between particles
Please help ASAP

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

Ineed ! i have no clue how to do this problem.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.