What is the oxidation number for N in the compound NH3? (Recall that H usually has an oxidation number of +1.) 0 -3
0-1
Ο Ο
O +3

The pressure in a fluid is affected by which characteristics of that fluid

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 do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?