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- 1. Multiple Choice
Is frying an egg a physical or chemical change?
Chemical
Physical
- 2. Multiple Choice
Which of the following is true?
A physical property can only be seen.
A physical property describes how matter can change when exposed to air.
A physical property is something that can be observed about the substance by itself.
A physical property can only be observed when two types of matter interact.
- 3. Multiple Choice
Which of the following are physical properties of the matter pictured?
Check all that are true
reacts to oxygen
malleable (bendable)
Oxidized in air
Tarnish with humidity
- 4. Multiple Choice
A chemical property describes how matter __________.
smells
reacts with another type of matte
looks under a microscope
dissolves when made into a solution
- 5. Multiple Choice
Jack leaves solid butter near a warm surface. When Jack returns, the butter has turned into a liquid. Jack's friend Elijah insists this is a chemical change. Is Elijah right?
yes, because melted butter is a new type of matter
no, because the butter didn’t have enough time to go through a chemical change
yes, because the matter changed states
no, because no new matter was formed
- 6. Multiple Choice
Is spoiling food a physical or chemical change?
Physical
Chemical
- 7. Multiple Choice
Is this an example of a physical or chemical change?
Physical
Chemical
- 8. Multiple Choice
Salt water, a mixture, is made by dissolving salt in water. Mixtures like this can be separated by using the physical properties of the mixture. Which would be the best way to separate a mixture made of salt and water?
Evaporation
Chromatography
Magnetism
Filtering
- 9. Multiple Choice
Use the basic properties of solids, liquids, and gases to identify the correct state of matter in the image.
(A) gas, (B) liquid, (C) solid
(A) solid, (B) liquid, (C) gas
(A) liquid, (B) solid, (C) gas
(A) solid, (B) gas, (C) liquid
- 10. Multiple Choice
What is physical change?
How two chemicals react with one another when combined
A property that we can measure or observe with our 5 senses or other tools
When two chemicals react with one another to form a new substance
When a change occurs but it does not result in the formation of a new substance
- 11. Multiple Choice
In the modern periodic table elements are arranged by:
Atomic mass
Atomic number
valence electrons
Number of isotopes
- 12. Multiple Choice
Each element is, usually, given one or two letters known as a chemical symbol.
True
False
- 13. Multiple Choice
What is the atomic mass of "F"
9
16
17
19
- 14. Multiple Choice
Metals are found on the ______________ side of the periodic table.
Nonmetals
Left
Right
Metals
- 15. Multiple Choice
A(n) _______ is the smallest particle of an element that has the chemical properties of that element.
Electron
Compound
Atom
Molecules
- 16. Multiple Choice
The chart gives the atomic number and mass number of two elements.
How many protons does Element B have?
10
20
9
19
- 17. Multiple Choice
Below is a square that represents one element of the periodic table.
What information is in this square of the periodic table, from top to bottom?
average atomic mass, chemical symbol, chemical name, atomic number
atomic number, chemical symbol, chemical name, average atomic mass
average atomic mass, chemical symbol, chemical name, proton number
atomic number, chemical symbol, chemical name, proton number
- 18. Multiple Choice
Which of the following represents an element?
H2O
HCl
CaCO3
Au
- 19. Multiple Choice
How many elements are there in CuSO4?
1
2
3
4
- 20. Multiple Choice
A sample of matter that is not mixed with any other type of matter.
Element
Pure Mixture
Pure substance
Compound
- 21. Multiple Choice
The image below shows how information about a specific element is represented on the periodic table.
What information does the symbol “As” give about the element?
Atomic number
Atomic mass
density
chemical symbol
- 22. Multiple Choice
What is the chemical symbol for the element Aluminum
A
AL
Al
al
- 23. Multiple Choice
What does the Law of Conservation of Mass say? It says,
"During a chemical reaction, mass is neither _______ or destroyed."
Burned
created
Melted
None of them
- 24. Multiple Choice
So, the Law of Conservation of Mass would tell us that the mass of all the REACTANTS must __________ the mass of all PRODUCTS in a chemical reaction.
Equal
be greater than
Be greater than
Be less than
- 25. Multiple Choice
An ENDOTHERMIC reaction would feel ______ to the touch, while an EXOTHERMIC reaction would feel ______ to the touch.
hot ; cold
cold ; hot
- 26. Multiple Choice
Fill in the missing number:
Mg + ? HCl → MgCl2 + H2
1
2
3
4
- 27. Multiple Choice
Fill in the missing number:
2 Na + 2 H2O → ? NaOH + H2
1
2
3
4
- 28. Multiple Choice
Fill in the missing number:
K2CO3 + 2 HCl → ? KCl + H2O + CO2
1
2
3
4
- 29. Multiple Choice
Fill in the missing number:
? Al + 3 O2 → 2 Al2O3
1
2
3
4
- 30. Multiple Choice
Fill in the missing numbers:
A Fe2O3 + 3 C → B Fe + 3 CO2
2, 4
2, 3
3, 1
4, 2
- 31. Multiple Choice
Fill in the missing numbers:
A O2 + CH4 → B H2O + CO2
2, 4
2, 3
2, 2
4, 2
- 32. Multiple Choice
Fill in the missing numbers:
Li2CO3 + A HNO3 → 2 LiNO3 + H2O + B CO2
2, 4
2, 3
2, 2
2, 1
- 33. Multiple Choice
Balance the equation:
__ Na + __ CuSO4 → __ Na2SO4 + __ Cu
2, 1, 1, 2
2, 1, 1, 1
2, 2, 2, 1
2, 1, 2, 1
- 34. Multiple Choice
Balance the equation:
__ Al + __ Ag2SO4 → __ Al2(SO4)3 + __ Ag
2, 3, 1, 6
2, 1, 1, 2
2, 3, 2, 3
2, 1, 2, 6
- 35. Multiple Choice
Balance the equation:
__ C3H8 + __ O2 → __ CO2 + __ H2O
2, 2, 3, 4
1, 3, 3, 4
1, 5, 2, 4
1, 5, 3, 4
- 36. Multiple Choice
Synthesis
Decomposition
Precipitation
Neutralization. Acids and bases.
- 37. Multiple Choice
Identify the following chemical reaction.
3 HBr + 1 Al(OH)3 ----> 3 H2O + 1 AlBr3
Decomposition
Synthesis (or combination)
Single displacement
Double displacement
- 38. Multiple Choice
Identify the following chemical reaction.
Pb + FeSO4 ----> PbSO4 + Fe
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
- 39. Multiple Choice
Which phrase describes what happens to atoms in a chemical reaction?never lost or gained, just rearranged
never lost or gained, just rearranged
sometimes lost, never rearranged
sometimes lost, gained, or rearranged
lost or gained, never rearranged
- 40. Multiple Choice
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
the product is doubled
the product is half the mass of the reactants
the mass is the same
the mass changes depending on the reaction
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