Naming and Chemical Formulas
The name of this compound:
NaCl
Sodium Chloride
New solid formation is a sign of what change?
Chemical
The following is what type of reaction:
H2O --> H2 + O2
Decomposition: XY ---> X+Y
The solution will most likely be a Base
What is the difference between a Cation and an Anion?
Cation: positively charged ion
Anion: negatively charged ion
The name of this Compound:
MgBr
Magnesium Bromide
Changing state can be a sign of what change?
Physical
The following is what type of reaction:
AlBr3 + Fe ----> FeBr3 + Al
Single displacement: AB + X ---> AX + B
What is our solution if we place magnesium in it and it begins to bubble and fizz?
Our solution is most likely an acid
How would you find the number of Valence shell electrons any atom would have?
Look at the group number on the periodic table, ignoring the first digit and using the 2nd.
The formula for this compound:
Aluminum Oxide
AL2O3
If something is described as Shiny, metal solid, what type of property is this?
Physical
The following is what type of reaction:
CaS + Fe2O3 ---> CaO + Fe2S3
Double Displacement: AB + CD ---> AD + CB
From looking at this reaction will it be basic or acidic:
HCl + Ca --> CaCl2 + H2
Acidic because of the HCl has the potential to lose H+ Ions in water
Why do we Balance Chemical Equations?
Law of Conservation of mass:
mass of products= mass of reactants
cannot be created or destroyed
The formula for this compound:
Heptahydrogen pentaiodide
H7I5
When something is described as reactive with metals, what kind of property is this?
Chemical
The following is what type of reaction:
Ca + N ---> Ca3N2
Synthesis: X + Y ---> XY
From looking at this reaction will it be basic or acidic:
Mg(OH)2 + Sr ---> Mg + Sr(OH)2
This reaction would be basic due to the presence of Mg(OH)2 that could create OH- ions in water
What is wrong with the name of the compound below:
NCl4 = Mononitrogen Tetrachloride
We never put a "mono" prefix on the first element.
The name of this compound:
N2O
Dinitrogen monoxide
If orange kool-aid is added to water and changes the water from clear to orange, what type of change has occured?
Physical, no new colour has formed. Orange was the expected colour from the outcome.
The following is what type of reaction:
HCl + NaOH ---> NaCl + H2O
Neutralization: Acid + Base --> Salt + Water
If solution B has a pH of 6 and solution A has a pH of 2, how many times more acidic is solution A compared to solution B.
Solution A will be 1000 times more acidic than Solution B.
Using toothpaste with Sodium Bicarbonate is an example of what useful reaction?
Neutralization Reaction