What is the enthalpy change, in kJ mol
H,(g) + Cl,(g) → 2HCI(g)

Which of these is the result of scientific research and not engineering? a. a new shoe design that features air cushioning for more comfort and protection b. the creation of glass with uv protection. c. a conclusion about diet commonalities among diabetics. d. the development of a smaller, more compact missile.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.