Select the correct definition of a compound's boiling point. a. the point at which the temperature of the compound exceeds the temperature of its surrounding environment
b. the point at which the temperature of the compound in degrees Celsius exceeds the atmospheric pressure in torr
c. the temperature at which the compound's vapor pressure falls below the pressure of its surrounding environment
d. the temperature at which the compound's vapor pressure is equal to the pressure of its surrounding environment

- 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

hi my dude or dudette

answer seismograph;