Reaction of ammonia and hydrogen chloride

Explanation:

In water, the reaction between ammonia (NH3) and hydrogen chloride (HCl) is a textbook example of acid-base chemistry. ... The theft leaves chloride alone and negative. But the nitrogen molecule (now called ammonium) has gained a positive charge from the stolen hydrogen, and that attracts the chloride.

- 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

the product of the pressure and volume is also constant