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Periodic Table
Compound
Name/Formula
Chemical Equations
Chemistry Math?
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100

What is a valence electron?

Where can we find this information on the Periodic Table?

Outermost electron

It is equal to the column number #1-8 (skip the transition metals)

100

What is the name of Li2O

Lithium Oxide

100

What is the name of the type of reaction where one chemical breaks down into two or more chemicals?

Decomposition

100

How many protons, neutrons, and electrons are in Potassium?

P=19

N=20

E=19

100

What is the difference between a element, compound and a mixture?

Element = pure, all one type of atom

Compound = More than one element bonded together all same molecule

Mixture = multiple different groups of atoms. More than one compound or element not chemically bonded

200

Which element (P or Cl) is larger in size based on the trend for atomic radius?

Explain why the trend occurs in your answer

Phosphorus

More protons=more force=smaller atom. 

Therefore, Cl is smaller than P

200

For the elements Calcium and Sulfur:

What is the formula when the elements bond?

What is the name when the elements bond?

CaS

Calcium Sulfide

200

Balance the following chemical equation?

__NH3 -> __N2  + __H2

2NH3 -> 2N2  + 3H2

200

What is the molar mass of Ca(OH)2

74 g/mol

200

How do the particles differ between a solid, liquid, and a gas?

Draw a picture to show how they are grouped and how they are moving

Solid= Definite shape, Definite volume, tightly packed

Liquid = indefinite shape, Definite volume, loosely packed

Gas = indefinite shape, indefinite volume, not packed

300

What are the diatomic elements and why are they important?

Br I N Cl H O F

Elements that exist in pairs i.e. O2 or Cl2

300

What is the formula for Iron (III) Bromide?

FeBr3

300

What is an equilibrium reaction? What is equal during these reactions?

A reaction that can occur forwards and backwards simultaneously. 

Rate forward = Rate reversed

300

How many grams are in 3.2 moles of Na2S

249.6 g of Na2S

300

What is the electron configuration of Silicon?

1s22s22p63s23p2

400

Which family on the periodic table is least/not reactive?

Which family(s) on the periodic table are most reactive?

Noble Gas

Alkali Metal/Halogen

400

What is the name of SO2?

What is the name of N2O4?

Sulfur Dioxide

Dinitrogen Tetroxide

400

Predict the outcome and write a complete balanced equation when Bromine gas reacts with Lithium Iodide.

Br2 + 2LiI -> 2LiBr + I2

400

Calculate the Molarity when 120g of K2CO3 is dissolved in 220mL of water?

Hint:

Molarity = Moles of solid / L of liquid

3.95 M

400

What are two differences between Ionic compounds and Covalent compounds?

Ionic = metal and non metal, transfer electrons

Covalent = All nonmetals, share electrons, prefixes in names

Different properties!!!!

500

What makes an element reactive vs nonreactive. 

Explain your answer

Depends on how close the element is to having a full octet (8 V.e)

8 v.e = Stable

Closer to 8 v.e = more reactive

500

What is the formula for Magnesium Phosphate?

Mg3(PO4)2

500

Balance the following equation:

__C3H6 + __O2 -> __CO2 + __H2O

2C3H6 + 9O2 -> 6CO2 + 6H2O

500

How many grams of Iron are needed to produce 101g of rust aka Iron (III) Oxide based on the following equation:

Iron reacts with oxygen to form Iron (III) Oxide.

4Fe + 3O2 -> 2Fe2O3


70.4 g of Iron

500

What is the difference between a neutral atom, an ion, and an isotope?

Calculate the protons, neutrons, and electrons of:

Pb                      Pb4+                   Lead-209

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