A2.400-g sample of meat is subjected to kjeldahl analysis. the liberated nh3(g) is absorbed by adding 50.00 ml of h2so4(aq), which is more than enough. this occurs through the reaction 2nh3(g)+h2so4(aq)→(nh4)2so4(aq) the excess acid requires 19.90 ml of 0.5510 m naoh for its complete neutralization.

- 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