what is the type of decay chain involved radon 222?

What is released when an excited electron returns to a lower energy state?

Suppose you want to make 100 grams of water, what is the molar mass of water

Describe each of the following as a physical or chemical property. 1. Apple slices turn brown when exposed to air. 2. At room temperature, mercury is a liquid. 3. Phosphorus will ignite when exposed to air. 4.

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

Select the word (s) to complete the word equation that matches the description of the reaction. Electrolysis breaks down water to form hydrogen and oxygen gas. A.

What kingdom is humans in!

Propane (C3H8) has a molar mass of 132 g/mole. You started out the day with a tank containing 9071 g of propane. At the end of the day, your tank contained 7532 g of propane gas. How many moles of gas did you use?

Why decomposition of ammonium nitrate is a redox reaction?

Two formulas for compounds containing hydrogen and oxygen are H2O and H2O2. Do these formulas represent the same compound? Explain.

My dog made become frightened and cover when he hears loud thunder this is an example of a reaction to What kind of stimuli A. chemicals B. light C. touch D. sound