If you prepare 250 mL of a 0.948 M HCl solution from a 4.74 M HCl solution, how much initial volume did you dilute?

Gymnast always perform on padded mats. how does the mats protect the gymnast

Describe the interaction that occurs between two objects with the same electrical charge.

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?