Assessment

4. Element X is a metal that reacts to form XCI. It has the smallest metallic radius of its group. What is element X?

What number is considered neutral? (On the pH scale)

Which element is rolled into a foil and used in your kitchen?

Both nuclear fusion and nuclear fission reactions a. release radioactive waste. b. involve the splitting of atoms. c. are utilized in nuclear power plants. d. release large amounts of energy.

How does the light source readout differ from the x-ray readout in the gizmo?

Zinc (Zn loses 2 valence electrons) and Nitrogen (N) How does zinc complete the octet rule? What charge is on the zinc ion? What type of ion is zinc (cation/anion) ? How does nitrogen complete the octet rule? What charge is on the nitrogen ion?

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

Is burning wood a physical change

A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)