WorksheetsSpring Physical science Final Practice Test
Total questions: 56
Worksheet time: 28mins
What is a solution in the context of mixtures?
When one substance is dissolved into another, forming a homogeneous mixture.
When substances are not evenly spread out.
When different components are easy to see.
When substances separate out over time.
Which of the following is NOT an example of a heterogeneous mixture?
Lemonade
Salad dressing
Paint
Cereal
If you mix coffee and water and the result appears blended and uniform, what type of mixture have you created?
Homogeneous mixture
Heterogeneous mixture
Colloid
Suspension
According to the flow chart, which type of matter is described as "on the PT"?
Compound
Element
Homogeneous mixture
Heterogeneous mixture
How can physical properties of matter be observed or measured?
By changing the chemical identity of the substance
By observing or measuring without changing the chemical identity
By mixing substances together
By heating the substance until it reacts
A student observes that syrup pours much more slowly than water. Using your understanding of viscosity, explain why this happens.
Syrup has a higher viscosity than water, so it resists flow more.
Syrup is colder than water, so it freezes.
Water is heavier than syrup, so it pours faster.
Syrup evaporates faster than water.
What is the purpose of the device shown in the image?
To measure temperature
To measure mass
To measure volume
To measure length
What is the first step in finding the volume of an irregularly shaped solid using water displacement?
Add the object to the cylinder
Record the final volume
Put enough water in the graduated cylinder to cover the object
Subtract initial volume from final volume
What does temperature measure in an object?
The color of the object
The average kinetic energy of particles in the object
The mass of the object
The volume of the object
What happens to the motion of particles as the temperature increases?
The motion of the particles decreases
The motion of the particles stays the same
The motion of the particles increases
The particles disappear
What is the heat of vaporization?
The energy needed to turn a solid into a liquid at its melting point
The energy needed to turn a liquid into a gas at its boiling point
The energy needed to freeze a liquid
The energy needed to condense a gas
What does a heating curve show?
The state transitions a substance goes through as heat/energy is added to it
The color changes of a substance when heated
The pressure changes of a substance when cooled
The mass of a substance as it evaporates
A student is given a heating curve diagram for water. What information can they determine from this diagram?
The specific state transitions (such as melting and boiling) as heat is added
The chemical composition of water
The electrical conductivity of water
The pH value of water
What do the columns numbers on a periodic table tell you?
What is the purpose of the periodic table of elements as shown in the image?
To organize elements based on their properties and atomic structure
To list all known animals
To show the phases of the moon
To display world maps
How does the periodic table help scientists understand elements better? (DoK 3)
By organizing elements by their properties and atomic structure, making it easier to compare and study them
By listing random numbers for each element
By showing pictures of each element
By grouping elements by color only
Explain how John Dalton’s model of the atom contributed to our understanding of elements and compounds. (DoK Level 2)
It showed that atoms are made of smaller particles.
It proposed that elements are made of atoms with the same mass and compounds are combinations of different atoms.
It introduced the concept of atomic number.
It explained the existence of isotopes.
According to the Bohr Model, how do electrons travel around the nucleus?
In random paths
In fixed orbits
In a straight line
In a spiral
Which part of the atom is positively charged?
Electron cloud
Nucleus
Shells
Valence electrons
What is the charge of the electron cloud?
Positively charged
Neutrally charged
Negatively charged
No charge
What is the charge of a neutron?
Positive
Negative
Neutral
Double positive
What element has 2 valence electrons and 4 energy levels
If you are given an element with a purple background in the periodic table from the image, what can you infer about its properties?
It is a metal
It is a metalloid
It is a nonmetal
It is a liquid at room temperature
Where is most of the mass of an atom located?
In the nucleus
In the electron cloud
In the outermost shell
In the atomic number
If an atom has 6 protons and 6 neutrons, what is its mass number?
12
6
18
36
How many neutrons are present in a Manganese (Mn) atom with a mass number of 55?
30
25
55
47
Why is the number of electrons the same as the number of protons in a neutral atom?
Because the positive and negative charges must balance
Because electrons are heavier than protons
Because neutrons have no charge
Because the atomic number is always even
What is a compound?
Chemical bonds form when...
Which of the following best describes an ionic bond?
When atoms transfer electrons to become stable
When atoms share protons to become stable
When atoms split into smaller atoms
When atoms lose neutrons to become stable
How does oxygen achieve stability as an ion?
By gaining 2 electrons to form a -2 charge
By losing 2 electrons to form a +2 charge
By gaining 1 electron to form a -1 charge
By losing 1 electron to form a +1 charge
When Lithium loses its valence electron, what type of ion does it form?
Anion
Cation
Neutral atom
Isotope
Why does Lithium form a +1 charge when it becomes an ion?
It gains one proton
It loses one electron
It gains one neutron
It loses one neutron
What is Nitrogen's oxidation number?
-3,
-2
+3
0
What does the diagram illustrate about nitrogen’s electron configuration?
Nitrogen loses electrons to become stable
Nitrogen gains electrons to become stable
Nitrogen does not change its electrons
Nitrogen shares electrons equally
Which property do elements in the same group of the periodic table share?
They have the same number of protons
They have the same number of neutrons
They have the same number of valence electrons
They have the same atomic mass
How is the oxidation number typically written in relation to the chemical symbol?
As a subscript to the left of the symbol
As a superscript to the right of the symbol
As a subscript to the right of the symbol
As a superscript to the left of the symbol
What is the typical oxidation number for Group 16 elements?
+2
-2
+3
-3
Which element in the diagram has seven valence electrons represented by green dots?
Hydrogen
Carbon
Fluorine
Phosphorous
Which type of diagram is used to show the bond formation between Aluminum and Chlorine in the example?
Electron Dot Diagram
Bar Graph
Line Graph
Pie Chart
how many Chlorine atoms bond with one Aluminum atom to form the compound?
1
2
3
4
What is a anion?
A negative ion formed by nonmetals gaining electrons
A positive ion formed by metals losing electrons
A neutral atom
A positive ion formed by nonmetals losing electrons
What does the notation (s) represent in a chemical equation?
Solid
Liquid
Gas
Aqueous
According to the Law of Conservation of Mass, which of the following statements is true?
Matter can neither be created nor destroyed, it can only change forms
Matter can be created from nothing
Matter can be destroyed completely
Matter can only be created, not destroyed
When balancing equations, what should you do with polyatomic ions if possible?
Break them apart into individual atoms
Ignore them
Keep polyatomic ions together
Change their subscripts
What type of chemical equation is this?
Synthesis
Combustion
Single Replacement
Decomposition
Which of the following chemical equations is a combustion reaction?
If you are given the reactants A + BC, what would be the products in a single replacement reaction?
B + AC
AB + C
A + B + C
A + BC (no reaction)
Which of the following is an example of a double replacement reaction?
Pb(NO₃)₂ + KI → KNO₃ + PbI₂
H₂ + O₂ → H₂O
Na + Cl₂ → NaCl
C + O₂ → CO₂
What is the term for the sudden appearance of a solid during a chemical reaction?
Solution
Precipitate
Solvent
Suspension
Which of the following is a characteristic of acids?
They break up in water to give off H⁺ ions.
They break up in water to give off OH⁻ ions.
They accept H⁺ ions from water.
They release oxygen gas in water.
Do acids or bases accept electrons pairs
Acids accept electrons
Bases accept electrons pairs
Which ion do bases produce in a solution?
H⁺
OH⁻
Na⁺
Cl⁻
Which of the following is a synthesis reaction?
2H₂ + O₂ → 2H₂O
Zn + CuSO₄ → ZnSO₄ + Cu
AgNO₃ + NaCl → AgCl + NaNO₃
2KClO₃ → 2KCl + 3O₂
When equal amounts of an acid and a base combine what is the result?
Which of the following best describes a decomposition reaction?
An element replaces another in a compound
A single compound breaks down into two or more simpler substances
Two elements combine to form a compound
Two compounds exchange ions to form two new compounds
