Show:
Outermost Electrons
Charges
Bonding
Compounds and Naming
Balancing and Reactions
100
The diagrams used to show only the valence electrons
What is Lewis Dot Diagrams or electron dot diagrams
100

The ionic charge for zinc in Zinc chloride, ZnCl2

What is +2?

100

List three diatomic covalent molecules

What is O2, H2, N2, Cl2, F2, Br2, I2?

100

The type of compound formed by Magnesium and oxygen

What is ionic?

100

Name 3 indicators (evidence) of a chemical reaction (chemical change).

Evolution of energy (heat or light)

Formation of a gas (change in odor, bubbling)

Permanent color change

change in temperature (gets warmer or colder)

formation of a precipitate

200
Number of dots shown on an electron dot diagram for Calcium, element number 20.
What is two?
200

Total charge on ionic compound

What is zero?

200
When a metal reacts with nonmetal it makes
What is ionic compound?
200
The type of bond formed by Nitrogen and oxygen
What is covalent?
200

In 6Pb(C2H3O2)2, how many oxygen atoms are there?

What is 24? Rule about parentheses--distribute the 2 to everything in the parentheses (2 * 2=4), then apply rule 4 and have the coefficient meet the subscript for the element (6 * 4=24)

300
Number of dots shown on an electron dot diagram for Aluminum, element number 13.
What is three?
300

Atoms that gain electrons have what charge? what kind of ion are they?

What is a negative charge and they are called anions

300
Have a full valence number and will not make compounds
What are the Noble Gases or Group 18?
300

Which compound is formed by covalent bonding: dinitrogen dioxide or aluminum sulfate

What is dinitrogen dioxide?

300

Zn + HCl : Type of reaction

What is single displacement?

400
The subatomic particle that determine how an atom will bond.
What are valence electrons?
400
The type of element that will most likely gain electrons and become negative.
What is a nonmetal element?
400
Brittle, dissolves easily in water, has a high melting point and conducts electric current
What is an ionic compound?
400

Three part question:1)Which is correctly written chemical formula: O2Li or LiO2? 2)Give the type of compound it is. 3)What is its chemical name?

What is LiO2, ionic, lithium oxide

400

What are the parts of a chemical reaction?

reactants and products

500

If an atom's valence number is 6, what is the number of bonds it needs to make to be stable? What is its ionic charge

It will need two bonds and its ionic charge is -2

500

In an ionic compound which element is the positive charge (cation) and which is the negative charge (anion)?

Metals are positive cations, Nonmetals are negative anions

500

What type of compounds are each of the following: MgF2      LiCl     CO2      NO2

What is ionic, ionic, covalent, covalent?

500

Which type of compound uses numerical prefixes in its chemical name to signal how many atoms of the element are in the formula?

What is covalent?

500

We cannot destroy metter, we cannot create matter, we simply rearrange the atoms of the matter to create new substances.

What is the Law of Conservation of Mass?