Which of the following statements is false? the rate of a first order reaction is dependent on concentraion. the half life of a zero order reaction is dependent on concentration. the half life of a second order reaction is not dependent on concentration. the rate of second order reactions is dependent on concentration. none of the statements are false.

The half life of a second order reaction is not dependent on concentration is false statement.

Explanation:

The general expression of half life of a reaction with nth order:

= Initial concentration of the reactant

The half life of a second order reaction is not dependent on concentration is false statement.

The half life of a second order reaction is dependent on concentration.

We have , n = 2

=

- 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