Which of the following would increase the rate of a chemical reaction between hydrochloric acid (hcl) and solid zinc metal (zn)? a. decreasing the amount of zn b. performing the reaction at a lower temperature c. pulverizing the zinc metal into a fine powder d. decreasing the concentration of hcl

C. Pulverizing the zinc metal into a fine powder

Explanation:

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

- 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