A solution is 0.055 M HBr. What is the pH of the solution

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon