128 gr of KBr (Potassium Bromide) is dissolved in 925 grams of water. What is the molality of the KBr solution?

Type the letter that represents the correct location for each particle type below.

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?

Define a is a tiny pavket of energy