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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. Mass is neither created nor destroyed duringordinary chemical or physical reactions
law of conservation of mass
physical change
plasma
electronegativity
2. A measure of the amount of matter
mass
nonmetal
electronegativity
change of state
3. A high-temperature physical state of matter in which atoms lose their electrons
plasma
electromagnetic radiation
quantum
periodic law
4. A reaction in which one or more substances are converted into different substances
scientific method
chemical reaction
molar mass
periodic law
5. Which way it spins. (up or down)
Spin Quantum Number
accuracy
nonmetal
group
6. A horizontal row of elements in the periodic table
period
Avogadro's number
Hund's rule
periodic law
7. The ratio of mass to volume or mass divided by volume
Quantum Numbers
alkali metals
density
actinide
8. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
Principle Quantum Number
family
halogens
9. A measure of the gravitational pull on matter
intensive property
reactant
SI (Le Système International d'Unités
weight
10. The closeness of a set of measurements of the same quantity made in the same way
quantity
system
electromagnetic radiation
precision
11. Two quantities that have a constant mathematical product
excited state
line-emission spectrum
inverse proportion
halogens
12. The elements of group 17 of the periodic table.
chemical reaction
product
halogens
solid
13. The number of protons in the nucleus of each atom of an element
atomic number
quantity
electromagnetic spectrum
electronegativity
14. The p-block elements together with the s-block elements.
plasma
density
SI (Le Système International d'Unités
main-group elements
15. The closeness of measurements to the correct or accepted value of the quantity measured
excited state
periodic table
electromagnetic radiation
accuracy
16. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
noble gas configuration
law of definite proportions
photon
17. A positive ion.
physical property
ground state
alkaline-earth metals
cation
18. 1/2 the distance between the nuclei of identical atoms that are bonded together.
Aufaub principle
atomic radius
derived unit
chemical property
19. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
plasma
system
model
20. The general term for any isotope of any element
Magnetic Quantum Number
theory
Quantum Theory
nuclide
21. The elements of group 1 of the periodic table.
accuracy
alkali metals
homogeneous
noble gas
22. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
density
mole
theory
matter
23. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
solid
homogeneous
system
hypothesis
24. The amount of space occupied by an object
group
chemical change
noble gas configuration
volume
25. Number of waves that pass a given point in a specific time - usually one second.
theory
frequency
derived unit
periodic table
26. The d-block elements are metals with typical metallic properties.
transition metals
continuous spectrum
gas
derived unit
27. Anything that has mass and takes up space
theory
matter
direct proportion
anion
28. A property that does not depend on the amount of matter present
noble gas
homogeneous
intensive property
gas
29. 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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30. Having a uniform composition throughout
ground state
periodic law
main-group elements
homogeneous
31. The 14 elements with the atomic numbers 90-103.
actinide
nuclear force
Pauli exclusion principle
chemistry
32. The measurement system accepted worldwide
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33. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
Aufaub principle
chemical reaction
atomic number
conversion factor
34. An outer main energy level occupied - in most cases - by 8 electrons
law of multiple proportions
electron affinity
noble gas configuration
Quantum Theory
35. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
density
reactant
homogeneous
scientific method
36. Something that has magnitude - size - or amount
transition metals
element
electromagnetic spectrum
quantity
37. Atoms of the same element that have different masses
isotopes
atom
chemical change
nuclide
38. A 3D region around the nucleus that indicates the probable location of an electron.
photon
Angular Momentum Quantum Number
orbital
period
39. An explanation of how phenomena occur and how data or events are related
model
nonmetal
intensive property
physical property
40. A unit that is a combination of SI base units
Angular Momentum Quantum Number
derived unit
scientific method
mixture
41. The emission of a continuous range of frequencies of electromagnetic radiation.
frequency
chemistry
Magnetic Quantum Number
continuous spectrum
42. The elements of group 2 of the periodic table.
alkaline-earth metals
molar mass
volume
ground state
43. A broad generalization that explains a body of facts or phenomena
quantum
theory
excited state
model
44. Not having a uniform composition throughout
heterogeneous
Principle Quantum Number
weight
Quantum Theory
45. A substance that is made from the atoms of two or more elements that are chemically bonded
compound
periodic table
chemical reaction
ionization energy
46. 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
volume
Avogadro's number
pure substance
Pauli exclusion principle
47. A substance that reacts in a chemical change
reactant
atomic mass unit
metalloid
excited state
48. Which suborbital. (Py - Px - Pz)
Magnetic Quantum Number
quantity
photon
heterogeneous
49. An element that has some characteristics of metals and some characteristics of nonmetals
plasma
density
physical property
metalloid
50. A negative ion.
system
anion
actinide
cation