For water to change from a liquid to solid, thermal energy needs to be

.

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?

How many grams of mgbr2 are needed to produce 75g or metal?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?