Explain using equations, why an aqueous mixture of ethanoic acid and sodium ethanoate can act as a buffer solution. 1) on addition of acid. 2) on addition of base. Its a practice exam question​

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∘