Whats the melting point of 3700 sublimes

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∘

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

How does science use models to gain a better understanding of concepts?