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Test your basic knowledge |
Pre - AP Chemistry
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Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
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.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
ionization
Heisenberg Uncertainty Principle
Pauli exclusion principle
2. Not having a uniform composition throughout
atom
heterogeneous
Avogadro's number
continuous spectrum
3. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
scientific notation n where the factor M is a scientific notation
mole
average atomic mass
nonmetal
4. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Heisenberg Uncertainty Principle
product
main-group elements
actinide
5. Having a uniform composition throughout
homogeneous
inverse proportion
matter
isotopes
6. Something that has magnitude - size - or amount
quantity
plasma
Pauli exclusion principle
chemical change
7. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
atomic mass unit
mole
wavelength
8. A change in which one or more substances are converted into different substances
anion
pure substance
reactant
chemical change
9. An explanation of how phenomena occur and how data or events are related
atomic mass unit
model
molar mass
ionization
10. A property that does not depend on the amount of matter present
chemical reaction
weight
compound
intensive property
11. Lowest energy state of an atom.
ground state
halogens
compound
law of conservation of mass
12. A 3D region around the nucleus that indicates the probable location of an electron.
electronegativity
change of state
orbital
atom
13. The elements of group 17 of the periodic table.
halogens
valence electrons
volume
electron affinity
14. The elements of group 1 of the periodic table.
electromagnetic radiation
mixture
system
alkali metals
15. Any process that results in the formation of an ion.
mass number
ionization
Quantum Theory
nuclide
16. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
atomic mass unit
periodic law
Magnetic Quantum Number
main-group elements
17. The closeness of a set of measurements of the same quantity made in the same way
precision
model
alkaline-earth metals
electron affinity
18. The state of matter in which the substance has a definite volume but an indefinite shape
law of definite proportions
atom
liquid
Magnetic Quantum Number
19. A broad generalization that explains a body of facts or phenomena
law of conservation of mass
theory
mole
chemical property
20. The measurement system accepted worldwide
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21. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
periodic table
anion
plasma
22. An element that has some characteristics of metals and some characteristics of nonmetals
electromagnetic spectrum
metalloid
Avogadro's number
element
23. The smallest unit of an element that maintains the properties of that element
accuracy
Principle Quantum Number
metal
atom
24. A substance that is formed by a chemical change
hypothesis
heterogeneous
derived unit
product
25. 1/2 the distance between the nuclei of identical atoms that are bonded together.
lanthanide
atomic radius
direct proportion
metalloid
26. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
mass
noble gas configuration
electromagnetic spectrum
electromagnetic radiation
27. The mass of one mole of a pure substance
molar mass
compound
inverse proportion
atomic number
28. The suborbitals of an atom. (S - P - D - F)
Spin Quantum Number
Angular Momentum Quantum Number
mass number
mixture
29. Any substance that has a definite composition
ionization energy
chemical
scientific notation n where the factor M is a scientific notation
precision
30. A reaction in which one or more substances are converted into different substances
anion
chemical reaction
product
plasma
31. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
nuclide
percent error
ionization energy
metalloid
32. The total number of protons and neutrons in the nucleus of an isotope
atom
mass number
electronegativity
main-group elements
33. A substance that is made from the atoms of two or more elements that are chemically bonded
heterogeneous
compound
Heisenberg Uncertainty Principle
main-group elements
34. Which way it spins. (up or down)
volume
Spin Quantum Number
wavelength
alkali metals
35. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
lanthanide
change of state
Aufaub principle
line-emission spectrum
36. The arrangement of electrons in an atom
electron configuration
Pauli exclusion principle
intensive property
law of conservation of mass
37. The smallest unit of an element that maintains the properties of that element
actinide
product
atom
chemistry
38. A positive ion.
inverse proportion
cation
percent error
wavelength
39. An element that is a good conductor of heat and electricity
ion
halogens
metal
product
40. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
system
Principle Quantum Number
scientific notation n where the factor M is a scientific notation
41. A physical change of a substance from one state to another
alkaline-earth metals
alkali metals
chemical change
change of state
42. Minimum quantity of energy that can be lost or gained by an atom.
direct proportion
line-emission spectrum
lanthanide
quantum
43. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound
frequency
law of definite proportions
significant figure
law of multiple proportions
44. A testable statement
group
nuclide
product
hypothesis
45. A high-temperature physical state of matter in which atoms lose their electrons
plasma
metal
scientific notation n where the factor M is a scientific notation
actinide
46. The elements of group 2 of the periodic table.
liquid
hertz
noble gas
alkaline-earth metals
47. Which suborbital. (Py - Px - Pz)
direct proportion
Magnetic Quantum Number
SI (Le Système International d'Unités
continuous spectrum
48. The 14 elements with the atomic numbers 90-103.
actinide
wavelength
physical change
law of multiple proportions
49. A measure of the gravitational pull on matter
law of multiple proportions
weight
group
chemistry
50. An outer main energy level occupied - in most cases - by 8 electrons
noble gas configuration
periodic law
mass number
gas
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