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Test your basic knowledge |
Pre - AP Chemistry
Start Test
Study First
Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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 state of matter in which a substance has neither definite volume nor definite shape
gas
atom
family
liquid
2. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition
chemistry
metalloid
family
pure substance
3. The elements of group 17 of the periodic table.
Quantum Numbers
Quantum Theory
model
halogens
4. A broad generalization that explains a body of facts or phenomena
weight
theory
cation
hypothesis
5. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
continuous spectrum
system
liquid
percent error
6. The number of protons in the nucleus of each atom of an element
Aufaub principle
transition metals
atomic number
system
7. Which way it spins. (up or down)
density
ionization energy
Spin Quantum Number
matter
8. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
continuous spectrum
homogeneous
Aufaub principle
9. One wave per second.
hertz
average atomic mass
nonmetal
valence electrons
10. A high-temperature physical state of matter in which atoms lose their electrons
weight
plasma
photon
precision
11. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
significant figure
Magnetic Quantum Number
metal
periodic law
12. The elements of group 1 of the periodic table.
alkali metals
electron affinity
physical change
significant figure
13. Something that has magnitude - size - or amount
quantity
pure substance
Principle Quantum Number
halogens
14. The amount of space occupied by an object
Quantum Theory
volume
law of conservation of mass
main-group elements
15. An explanation of how phenomena occur and how data or events are related
law of conservation of mass
molar mass
chemical
model
16. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.
mass number
periodic table
Pauli exclusion principle
derived unit
17. A physical change of a substance from one state to another
change of state
lanthanide
model
Angular Momentum Quantum Number
18. 1/2 the distance between the nuclei of identical atoms that are bonded together.
atomic radius
mixture
element
change of state
19. Any process that results in the formation of an ion.
weight
isotopes
ionization
molar mass
20. A vertical column of the periodic table
atomic number
law of definite proportions
family
electronegativity
21. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
photon
gas
mole
law of conservation of mass
22. A change in which one or more substances are converted into different substances
heterogeneous
inverse proportion
SI (Le Système International d'Unités
chemical change
23. The ability of a substance to undergo a change that transforms it into a different substance
plasma
lanthanide
chemical property
mass number
24. A pure substance made of only one kind of atom
noble gas
element
matter
mass
25. A characteristic that can be observed or measured without changing the identity of the substance
periodic table
physical property
Angular Momentum Quantum Number
metal
26. The arrangement of electrons in an atom
main-group elements
electron configuration
Spin Quantum Number
continuous spectrum
27. The suborbitals of an atom. (S - P - D - F)
photon
hypothesis
Angular Momentum Quantum Number
line-emission spectrum
28. The emission of a continuous range of frequencies of electromagnetic radiation.
model
excited state
continuous spectrum
Quantum Theory
29. A positive ion.
law of multiple proportions
hertz
cation
ionization
30. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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31. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Quantum Theory
Quantum Numbers
liquid
group
32. The elements of group 2 of the periodic table.
alkaline-earth metals
gas
inverse proportion
period
33. A measure of the amount of matter
atomic radius
quantity
mass
gas
34. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
mass number
photoelectric effect
physical change
35. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
noble gas
matter
frequency
system
36. The closeness of measurements to the correct or accepted value of the quantity measured
electron affinity
extensive property
isotopes
accuracy
37. The state of matter in which the substance has a definite volume but an indefinite shape
alkaline-earth metals
plasma
liquid
main-group elements
38. Atoms of the same element that have different masses
Heisenberg Uncertainty Principle
anion
isotopes
noble gas configuration
39. An outer main energy level occupied - in most cases - by 8 electrons
reactant
law of conservation of mass
noble gas
noble gas configuration
40. The state of matter in which the substance has definite volume and definite shape
solid
ion
mass number
Quantum Numbers
41. The closeness of a set of measurements of the same quantity made in the same way
wavelength
photoelectric effect
chemical reaction
precision
42. A substance that is made from the atoms of two or more elements that are chemically bonded
density
compound
Heisenberg Uncertainty Principle
atom
43. The 14 elements with the atomic numbers 58-71.
mass number
element
photon
lanthanide
44. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers
law of multiple proportions
wavelength
gas
hertz
45. Describes mathematically the wave properties of electrons and other very small particles.
nuclide
hertz
Quantum Theory
periodic law
46. Minimum quantity of energy that can be lost or gained by an atom.
heterogeneous
extensive property
quantum
mass number
47. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
cation
actinide
photon
law of multiple proportions
48. An element that is a good conductor of heat and electricity
intensive property
metal
Avogadro's number
chemical reaction
49. Two quantities that give a constant value when one is divided by the other
actinide
direct proportion
accuracy
wavelength
50. A reaction in which one or more substances are converted into different substances
electron configuration
atomic mass unit
law of definite proportions
chemical reaction