What ion forms when an acid is dissolved in a solution?

Based on the position vs. time graph which velocity vs. time graph would correspond to the data

100mg magnesium reacts with 20ml of 1.0m hcl

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light