Why might bone be a common place for radioactive Sr-90 to accumulate in placental mammals? Does the same reasoning hold for isotopes of Ra?

The clouds are grey and ground is wet. a quantitative b qualitative

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3