Navigating the Periodic Table
Balancing Chemical Equations
Ionic Bonding
Types of Chemical Reactions
Independent Vs. Dependent Variables
100
What are groups?
Groups are the vertical columns numbered 1-18.
100
__Fe + __O₂ → __Fe₂O₃
4 Fe + 6 O₂ → 2 Fe₂O₃
100
what are the 4 rules of ionic bonding?
1. Formed among cations (+) and anions(-)
2. Octet rule- 8 valence electrons in their outermost shell to be stable
3. Charged atoms bind to form neutral ionic compounds
4. At least 1 metal and 1 nonmetal
100
What is a combustion reaction?
hydrogen carbon+oxygen= carbon dioxide+water
100
What is the independent variable?
The variable you alter to get results.
200
What are periods?
Periods are the horizontal rows that are numbered 1-7.
200
__H₂ + __Cl₂ → __HCl
H₂ + Cl₂ → 2 HCl
200
Name: N2O
dinitrogen monoxide
200
What is the decomposition of AB?
A+B
200
What is the dependent variable?
The variable you are most interested in.
300
Where does the first nonmetal begin?
Group 13, period 2.
300
__C₄꣐H₆O₃ + __H₂O → __C₂H₄O₂
1 C₄H₆O₃ +1 H₂O → 2 C₂H₄O₂
300
What is the prefix of 7?
hepta.
300
What is the synthesis of A+B?
AB
300
On a graph, which axis is the dependent variable?
The y-axis.
400
What is the biggest type of element on the table?
Transition metals.
400
__C₄H₁₀O+ __O₂ → __CO₂ + __H₂O
1 C₄H₁₀O+ 6 O₂ → 4 CO₂ + 5 H₂O
400
Write the chemical formula of nitrogen dioxide.
NO2
400
Sodium+chloride=sodium chloride is what type of reaction?
Synthesis.
400
On a graph, which axis is the independent variable?
The x axis.
500
How do you know how many valence electrons an element has based on the periodic table of elements?
The group number it is in. If it is double digits, the second number tells the valence electrons.
500
__H₂SiCl₂ + __H₂O → __H₈Si₄O₄ + __HCl
4 H₂SiCl₂ +4 H₂O −−→ 1 H₈Si₄O₄ +8 HCl
500
Draw a modified Bohr Model of NH3
500
Al2O3= Al+O2 is what type of reaction?
Decomposition.
500
Rana made an experiment on how the temperature of vinegar affects how well it cleans pennies. What are the independent/dependent variables?
The dependent variable is the difference in luster of pennies after being soaked in different vinegar temperatures. The independent variable is the temperature of the vinegar.