When one atom of hydrogen (h) combines with one atom of chlorine (cl), a polar covalent bond forms between the h and the more electronegative cl, resulting in a molecule of hcl. which of the following describes the arrangement of valence electrons in a bond between h and cl?
a. the valence electrons are shared equally between h and cl.
b. the valence electrons spend more time around the atom of h.
c. the valence electrons spend more time around the atom of cl.
d. the valence electrons are given up by the h and gained by the cl.

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced. be sure your answer has the correct number of significant digits.

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

In salt water solution, the salt is the blank