Which of the following salts, with atomic masses rounded to the nearest integer, has the least error in the molar mass?
1. LiCl
2.MgCl2
3. NaCl
4. NaF

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

Suppose you discovered a new element with 120 protons and 2 electrons in its outer level . i'm what group does this new element belong? what properties would you expect it to have

What percentage of energy used in the u.s is produced from fossil fuels