WorksheetsOyster Unit
Total questions: 29
Worksheet time: 22mins
Which of the following pH numbers indicates a neutral substance?
1
5
7
14
Which of the following pH numbers indicates a strong acid?
3
5
7
14
When dissolved in water, acids produce:
bases
salts
hydrogen (H+) ions
hydroxide (OH-) ions
When solutions of two ionic compounds are combined and a solid forms, the process is called
hydration
solvation
dissociation
precipitation
Select ALL that are TRUE about Calcium Carbonate
The chemical formula is CaCO3
Another name for calcium carbonate is oyster shell
Calcium carbonate dissolves in acid
Calcium carbonate easily dissolves in water
A temperature increase causes particles to...
to slow down
move faster
collide higher
in the right order
What does NOT happen when the temperature is increased?
particles collide more often
particles collide with more energy
particles move faster
particles react at a slower rate
Why does a higher concentration increase the rate of reaction
it increases the amount of reactants
it lowers the activation energy
it increases the energy of particle collisions
it increases the frequency of particle collisions
Hydrogen ions form with water to produce H3O+ ions, known as...
neutrons
hydroxide
electrons
hydronium
What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH-) ions?
below 7
7
above 7
0-14
Select ALL that apply to acid names.
formulas start with Hydrogen atoms
names end with hydroxide name
a lot of names end in "-ic"
formulas end in OH atoms
What ion interferes with oyster shell formation by bonding with CO3-2?
Ca+2
H+
CO3-2
Na+
Which of the following best describes a precipitate?
solid powder that falls out of sollution when a solid and liquid reactant combine
solid powder that falls out of solution when aqueous and gaseous reactants combine
solid powder that falls out of a solution when two aqueous reactants combine
Use the solubility rules to determine if the following compound is solluable in water (Lesson 5 paper) PbBr2
soluble
insoluble
CaCl2(aq) + 2 AgNO3(aq) → Ca(NO3)2(aq) + 2 AgCl(s)
How can we tell the above reaction is a precipitate reaction?
It's a double replacement reaction that forms one aqueous and one solid product
it's a single replacement reaction that forms one aqueous and one solid product
it's a double replacement reaction that forms two aqueous products
it's a single replacement reaction that forms two aqueous products
According to the solubility chart (Lesson 5) compounds containing ammonium cations (NH4+) are:
Not soluble
sometimes coluble
always soluble
always insoluble
In a basic solution...
the hydroxide ion concentration is greater
They hydrogen ion concentration is greater
there are equal amounts of hydrogen and hydroxide ions
When the hydrogen ion concentration decreases by a factor of 1,000, the pH would change from...
3 to 4
3 to 6
3 to 5
3 to 3,000
Name the following compound:
HF
hydrofluoric acid
fluoric acid
fluorous acid
hydrogen fluoride
Name the following compound:
HNO3
hydronitric acid
nitric acid
nitrous acid
hydrogen nitride acid
Write the formula for the following compound:
Hydrochloric acid
HCl
HClO3
HClO2
HClO
When naming Polyatomic acids with "-ite" ions, change the ending to:
-ate
-ic
-ous
-ite
If a compound dissolves in water,
the bond energy of the compound is high
the compound can easily pull apart water into ions
the bond energy of the compound is low
water can dissolve everything
Name the following compound
H2SO3
sulfuric acid
sulfurous acid
hydrosulfuric acid
hydrogen sulfuric acid
Nitric acid
HNO3
HNO2
H3N
H2NO4
Phosphoric acid
H3PO4
H3PO3
H3P
H3PO2
H2CO3
Carbonic acid
Hydrocarbonic acid
Carbonous acid
Hydrocarbonous acid
