A 31.5 mL aliquot of HNO3 (aq) of unknown concentration was titrated with 0.0134 M NaOH (aq). It took 23.9 mL of the base to reach the endpoint of the titration. The concentration (M) of the acid was . Group of answer choices 1.02 0.0102 0.0204 0.227 0.0051

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Which of the following electromagnetic waves can create ions?

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive