Yeah, i need : ( a student is deciding which chemicals are acids by measuring their ph. he sees that a solution of co2 has an acidic ph. he decides that he must have contaminated his sample. he thinks that co2 could not create hydrogen ions in the solution since it contains no hydrogen atoms. explain what is incorrect about the student’s reasoning.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.