How is a covalent bond formed [what do the electrons do]?

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals