Which of the following terms best describes the nucleus of a radioactive element?

a. unchanging

b. explosive

c. unstable

d. energized

Which of the following statements correctly identifies and describes the type of covalent bond found between oxygen and hydrogen in water molecules

Suppose 0.981 g of iron (II) iodide is dissolved in 150. mL of a 35.0 m M aqueous solution of silver nitrate.

You notice that you cannot read your book through a test tube of fluid held against the print, making it so blurred as to be unreadable. There is no precipitant in the bottom of the beaker, though it has been sitting for several days in a rack.

The mass number is A. use the atomic number B. mass number - atomic number C. number of protons and neutrons in an atom

Predict which atom has the higher ionization energy. Mg Na

A piece of iron can change in different ways. How is iron bending different from iron rusting?

Which organism would least likely be selectively bred A) Dandelions B) Nantes Carrots C) Belgian Blue Cattle D) Hypoallergenic Cats

You are given a clear solution of KNO3. Using 3-4 sentences explain how you would determine if the solution is unsaturated, saturated, or supersaturated

Which element combination (s) would result in electrons being shared? [] sodium (Na) and oxygen (O) [] carbon (C) and fluorine (F) [] oxygen (O) and hydrogen (H) [] aluminum (Al) and chlorine (Cl)

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3