Consider an atom that has 23 negatively charged atomic particles. how many neutrons of Tomic particles is this atom consist

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

What is bromine+calcium iodide--> calcium bromide +iodine balanced