The solubility product of pbbr2 is 8.9 10-6. determine the molar solubility in the following. (a) pure water webassign will check your answer for the correct number of significant figures. m (b) 0.28 m kbr solution webassign will check your answer for the correct number of significant figures. 4.5e-4 incorrect: your answer is incorrect. seenkey 0.00011 your response differs from the correct answer by more than 100%. m (c) 0.24 m pb(no3)2 solution webassign will check your answer for the correct number of significant figures. m

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms