For a single H2 molecule, H2 → 2H, the dissociation energy is 4.52 eV. How much energy would have to be put in (in kJ) to dissociate a mole of hydrogen molecules?

When elements combine to form compounds, chemical bonds form between the atoms. Bonds form when atoms share or exchange in a way that gives each atom a complete outer shell. electrons protons neutrons nucleus

In a transverse wave is the motion of disturbance parallel to the wave motion?

Which is the best acid to use in the preparation of a buffer with ph = 3.3?

Which of these gases are outgassed from our volcanic eruptions? a. water vapor, methane, carbon dioxide b. carbon dioxide, water vapor, oxygen c. ammonia, water vapor, oxygen d. oxygen, methane, ammonia e. helium, carbon dioxide, methane?

What kind of cycle might you learn at school?

Which atom can accommodate an octet of electrons but doesn't necessarily have to?

Heat is an exchange of internal energy from one system to another due to A. a temperature difference between the systems. B. one system being gas and the other being solid. C. the systems having the same temperature. D.

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work: W = Fd) 0.5 m 2 m 250 m 750 m'

Lead (ii) sulfide (pbs) has a ksp of 3.0 * 10-28. what is the concentration of lead (ii) ions in a saturated solution of pbs? 1.7 * 10-14m 1.5 * 10-14m 3.0 * 10-14m

A 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evoled at 21degree celcius and 748mm of Hg?