Asample of water at 100°c is converted to steam after absorbing 820 kj of heat. how grams of h2o are contained in the sample? assume that the molar heat of vaporization of water is 41 kj/mol.

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∘

Why is the melting of ice a physical change ?

What information does a complete ionic equation give that the balanced equation doesn’t show?