Afictitious element x is composed of 10.0 percent of the isotope 55x, 20.0 percent of the isotope 56x, and 70.0 percent of the isotope 57x. calculate the weighted atomic mass of element x to the nearest tenth.

What is the value of keq for the reaction expressed in scientific notation?

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

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∘