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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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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 ratio of mass to volume or mass divided by volume
gas
isotopes
significant figure
density
2. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
valence electrons
Quantum Numbers
mass
electromagnetic radiation
3. The state of matter in which a substance has neither definite volume nor definite shape
gas
accuracy
quantity
physical property
4. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.
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5. Describes mathematically the wave properties of electrons and other very small particles.
line-emission spectrum
Quantum Theory
chemical
atom
6. An element that is a good conductor of heat and electricity
quantum
accuracy
metal
chemical change
7. Atoms of the same element that have different masses
atom
Angular Momentum Quantum Number
chemistry
isotopes
8. A negative ion.
change of state
anion
molar mass
Principle Quantum Number
9. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
noble gas
change of state
system
hypothesis
10. Two quantities that give a constant value when one is divided by the other
direct proportion
law of conservation of mass
alkaline-earth metals
accuracy
11. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
law of conservation of mass
scientific notation n where the factor M is a scientific notation
ionization
noble gas
12. Which way it spins. (up or down)
density
Spin Quantum Number
heterogeneous
Pauli exclusion principle
13. A property that depends on the amount of matter that is present
extensive property
solid
Hund's rule
atom
14. The number of protons in the nucleus of each atom of an element
atomic number
compound
isotopes
intensive property
15. 1/2 the distance between the nuclei of identical atoms that are bonded together.
electron affinity
atomic radius
wavelength
Pauli exclusion principle
16. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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17. The smallest unit of an element that maintains the properties of that element
matter
atom
derived unit
volume
18. The total amount of energy level an atom has.
accuracy
mole
Principle Quantum Number
noble gas
19. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
matter
Quantum Theory
electromagnetic radiation
molar mass
20. A broad generalization that explains a body of facts or phenomena
reactant
molar mass
theory
scientific method
21. The measurement system accepted worldwide
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22. 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
atom
ionization
law of definite proportions
ionization energy
23. A unit that is a combination of SI base units
derived unit
law of conservation of mass
law of definite proportions
compound
24. State in which an atom has a higher potential energy than it has in it's ground state.
noble gas configuration
hypothesis
gas
excited state
25. An explanation of how phenomena occur and how data or events are related
law of definite proportions
orbital
model
electronegativity
26. The general term for any isotope of any element
nuclide
liquid
line-emission spectrum
valence electrons
27. The elements of group 1 of the periodic table.
photoelectric effect
metalloid
cation
alkali metals
28. Any substance that has a definite composition
frequency
product
chemical
percent error
29. A property that does not depend on the amount of matter present
intensive property
hypothesis
average atomic mass
anion
30. Having a uniform composition throughout
homogeneous
atomic radius
Pauli exclusion principle
accuracy
31. Something that has magnitude - size - or amount
electromagnetic radiation
quantity
Pauli exclusion principle
transition metals
32. A pure substance made of only one kind of atom
element
Avogadro's number
anion
scientific notation n where the factor M is a scientific notation
33. Anything that has mass and takes up space
Quantum Theory
nuclide
matter
orbital
34. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
physical change
Angular Momentum Quantum Number
ion
35. 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
pure substance
density
frequency
reactant
36. Lowest energy state of an atom.
wavelength
line-emission spectrum
ground state
Quantum Theory
37. Combination of all the forms of electromagnetic radiation.
photoelectric effect
reactant
weight
electromagnetic spectrum
38. A measure of the gravitational pull on matter
atom
weight
main-group elements
family
39. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
percent error
periodic table
chemical change
cation
40. One wave per second.
hertz
accuracy
law of definite proportions
continuous spectrum
41. The elements of group 17 of the periodic table.
Quantum Numbers
atom
line-emission spectrum
halogens
42. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
Quantum Theory
line-emission spectrum
electron affinity
atom
43. Not having a uniform composition throughout
noble gas configuration
Principle Quantum Number
plasma
heterogeneous
44. The d-block elements are metals with typical metallic properties.
Avogadro's number
chemistry
family
transition metals
45. The arrangement of electrons in an atom
continuous spectrum
periodic law
electron configuration
law of definite proportions
46. The elements of group 2 of the periodic table.
alkaline-earth metals
line-emission spectrum
actinide
Quantum Numbers
47. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
photoelectric effect
pure substance
average atomic mass
48. 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
metal
element
Avogadro's number
49. The p-block elements together with the s-block elements.
main-group elements
significant figure
ionization energy
Quantum Theory
50. A change in which one or more substances are converted into different substances
ionization energy
valence electrons
chemical change
period
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