6. The image above shows information about two different substances in sealed containers. A scientist transfers the same amount of energy into both substances. One
substance changes phase, but the other does not. Which chemical changed phase, and
why did it change?

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

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?

Drug abuse will not lead to physical and psychological dependence. true or false ?