Types of Reactions
2 Fe(OH)3 --> Fe2O3 + 2 H2O
Decomposition (one compound breaks apart into two different substances)
When an equation is balanced, there are the same number of ____________ in the products as there are in the reactants.
Atoms (not molecules)
What is the chemical symbol for Carbon Dioxide?
CO2
How many valence electrons does nitrogen have?
5
What schools did I go to?
(Bonus points for each school named)
Central Catholic High School
John Cabot University
Portland Community College
Lewis & Clark College
When lightning strikes, enough energy is supplied to break the bonds of nitrogen (N2) and oxygen (O2) gases, which causes them to combine to form nitrogen monoxide (NO).
1) Write out the equation.
2) What kind of reaction is this?
1) N2 + O2 --> 2 NO
2) Synthesis Reaction
Is this equation balanced? Write out the products and reactants:
Na + O2 --> Na2O
NOT balanced
Reactants - 1 Na, 2 O
Products - 2 Na, 1 O
Balanced = 4 Na + O2 --> 2 Na2O
1. What is the chemical symbol for ozone?
2. One fact about ozone
O3
What are the different types of bonds atoms can have between each other?
Covalent, Ionic, Metallic
What sports/clubs did I do in high school?
What sports/clubs do I advise now?
(bonus points for each one)
In high school - lacrosse, GSA, Social Justice Club, Peer Mediators, racquetball
Now - QSA, Science Bowl, Flag Football
Acid rain can be caused by sulfur dioxide (SO2) combining with water (H2O) in the atmosphere. When these compounds come into contact, they produce sulfuric acid (H2SO3).
1. Write out the equation
2. Balance the equation
3. Identify the type of equation
1. SO2 + H2O --> H2SO3
2. SO2 + H2O --> H2SO3
3. Synthesis
Is this equation balanced?
If yes, write out the products and reactants
If no, balance it
Al(OH)3 + HBr --> AlBr3 + H2O
Al(OH)3 + 3 HBr --> AlBr3 + 3 H2O
What is the difference between sulfuric acid and sulfur dioxide?
Sulfur dioxide (SO2) is a primary pollutant, released into the air by burning oil, gas, coal.
Sulfuric acid (HSO3) is a secondary pollutant, created by the chemical reaction between SO2 and water and oxygen in the air.
1. What is the difference between an ion and an isotope?
2. Write the symbol as an example of each
Ion - atom with an electrical charge, has more or less electrons than the standard (H+)
Isotope - atom with a higher or lower atomic mass, has more or less neutrons in the nucleus (Hydrogen-2)
Would Kehoe rather...
A) Watch a movie/show
B) Read a book
C) Listen to a podcast
Podcast
(Las Culturistas, Normal Gossip, This American Life)
What is the difference between Single and Double replacement? (In your own words! DO NOT copy the definition)
Single replacement - Two things plus one thing = one thing plus 2 things
Double replacement - Two things + Two things then switch both parts
Is this equation balanced?
If yes, write out the reactants and products.
If no, balance the equation.
C + SO2 --> CS2 + CO
5 C + 2 SO2 --> CS2 + 4 CO
Write out a chemical equation that results in ammonia as a product.
(NH2)2CO + H2O --> CO2 + 2 NH3
N2 + 3 H2 --> 2 NH3
Write the electron configuration for Zinc
1s22s22p63s23p64s23d10
What would I MOST LIKELY order at a restaurant?
A) Wings
B) French Fries
C) Steak
B) French Fries (I'm a vegetarian!)
Draw an example equation to represent combustion using emojis/symbols. DO NOT copy the example in your notes.
AB + C --> AC + BC
Is this equation balanced?
If yes, write out the reactants and products.
If no, balance the equation.
CH3CH2CH2CH3 + O2 --> CO2 + H2O
2 CH3CH2CH2CH3 + 13 O2 --> 8 CO2 + 10 H2O
What does the x in NOx stand for?
X = variable, could be 1, 2, or 3.
NOx refers to a group of compounds called nitrogen oxides.
Primarily NO, NO2, NO3
What type of bond do water molecules have?
A) Ionic
B) Non polar Covalent
C) Polar Covalent
D) Metallic
Double points if you explain WHY.
Polar covalent
Covalent - H and O are both nonmetals
Polar - the difference in electro-negativity is great enough to create a positive and a negative side to the molecule
If I wasn't a teacher, draw where I would be and what I would be doing right now.
Best drawing wins the points