NH 3(aq) H 2O (l) <---> NH 4 (aq) OH -(aq) What is the conjugate base of NH 4 in this reaction

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

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?