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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.
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 emission of a continuous range of frequencies of electromagnetic radiation.
electron configuration
continuous spectrum
inverse proportion
atomic number
2. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
anion
element
nonmetal
conversion factor
3. 1/2 the distance between the nuclei of identical atoms that are bonded together.
product
matter
atomic radius
extensive property
4. The measurement system accepted worldwide
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5. 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
atom
chemistry
law of multiple proportions
pure substance
6. The ability of a substance to undergo a change that transforms it into a different substance
chemical property
continuous spectrum
accuracy
valence electrons
7. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
nuclear force
percent error
average atomic mass
excited state
8. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
liquid
law of definite proportions
continuous spectrum
mole
9. Two quantities that have a constant mathematical product
inverse proportion
chemical change
continuous spectrum
frequency
10. Mass is neither created nor destroyed duringordinary chemical or physical reactions
Avogadro's number
SI (Le Système International d'Unités
law of conservation of mass
Angular Momentum Quantum Number
11. The mass of one mole of a pure substance
Spin Quantum Number
mixture
isotopes
molar mass
12. The 14 elements with the atomic numbers 90-103.
atom
actinide
nonmetal
Hund's rule
13. A vertical column of the periodic table
extensive property
physical change
group
alkaline-earth metals
14. A change in which one or more substances are converted into different substances
chemical change
mixture
chemical reaction
chemical property
15. A unit that is a combination of SI base units
periodic law
derived unit
nuclear force
Heisenberg Uncertainty Principle
16. One wave per second.
hertz
electronegativity
group
chemical
17. Anything that has mass and takes up space
density
periodic table
nuclear force
matter
18. An element that is a poor conductor of heat and electricity
percent error
valence electrons
nonmetal
electronegativity
19. A testable statement
hypothesis
periodic table
alkaline-earth metals
halogens
20. An outer main energy level occupied - in most cases - by 8 electrons
continuous spectrum
noble gas configuration
period
alkali metals
21. State in which an atom has a higher potential energy than it has in it's ground state.
Spin Quantum Number
law of multiple proportions
isotopes
excited state
22. A change in a substance that does not involve a change in the identity of the substance
accuracy
physical change
nuclide
mass number
23. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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24. The 14 elements with the atomic numbers 58-71.
compound
atomic number
inverse proportion
lanthanide
25. The d-block elements are metals with typical metallic properties.
physical property
transition metals
halogens
extensive property
26. The elements of group 2 of the periodic table.
mole
alkaline-earth metals
chemical property
product
27. 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
nonmetal
plasma
pure substance
noble gas configuration
28. An atom or group of bonded atoms that has a positive or negative charge.
Principle Quantum Number
significant figure
atomic mass unit
ion
29. Having a uniform composition throughout
homogeneous
change of state
gas
Aufaub principle
30. A substance that is formed by a chemical change
frequency
significant figure
chemical change
product
31. Distance between corresponding points on adjacent waves.
wavelength
percent error
liquid
Angular Momentum Quantum Number
32. The closeness of a set of measurements of the same quantity made in the same way
precision
percent error
alkali metals
chemistry
33. Not having a uniform composition throughout
chemical
heterogeneous
electronegativity
physical change
34. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
pure substance
Principle Quantum Number
volume
line-emission spectrum
35. Two quantities that give a constant value when one is divided by the other
photon
direct proportion
atom
Aufaub principle
36. A pure substance made of only one kind of atom
element
plasma
law of definite proportions
chemistry
37. A property that depends on the amount of matter that is present
Angular Momentum Quantum Number
extensive property
intensive property
reactant
38. The energy required to remove one electron from a neutral atom of an element.
intensive property
orbital
ionization energy
noble gas
39. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
extensive property
valence electrons
precision
Heisenberg Uncertainty Principle
40. The energy change that occurs when an electron is acquired by a neutral atom.
electron affinity
chemical change
atom
metalloid
41. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
Hund's rule
Spin Quantum Number
excited state
42. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
percent error
line-emission spectrum
system
SI (Le Système International d'Unités
43. A negative ion.
metalloid
anion
Pauli exclusion principle
atom
44. Number of waves that pass a given point in a specific time - usually one second.
weight
ion
solid
frequency
45. An element that is a good conductor of heat and electricity
alkali metals
SI (Le Système International d'Unités
law of definite proportions
metal
46. The state of matter in which a substance has neither definite volume nor definite shape
frequency
gas
ground state
chemical property
47. 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
law of definite proportions
molar mass
Avogadro's number
photon
48. The amount of space occupied by an object
nonmetal
volume
electron configuration
liquid
49. Any process that results in the formation of an ion.
solid
mass number
precision
ionization
50. A substance that is made from the atoms of two or more elements that are chemically bonded
law of multiple proportions
periodic table
model
compound
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