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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. A unit that is a combination of SI base units
Aufaub principle
derived unit
system
ion
2. Two quantities that give a constant value when one is divided by the other
atomic number
direct proportion
chemical
excited state
3. A substance that is made from the atoms of two or more elements that are chemically bonded
compound
solid
family
isotopes
4. An element that is a poor conductor of heat and electricity
hertz
metal
element
nonmetal
5. The mass of one mole of a pure substance
frequency
molar mass
heterogeneous
photon
6. Describes mathematically the wave properties of electrons and other very small particles.
electromagnetic spectrum
metalloid
liquid
Quantum Theory
7. A testable statement
anion
Quantum Numbers
hypothesis
quantum
8. An explanation of how phenomena occur and how data or events are related
density
law of conservation of mass
model
volume
9. Atoms of the same element that have different masses
excited state
alkaline-earth metals
heterogeneous
isotopes
10. A measure of the gravitational pull on matter
metal
precision
hypothesis
weight
11. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
accuracy
metalloid
Pauli exclusion principle
average atomic mass
12. The state of matter in which the substance has a definite volume but an indefinite shape
scientific method
chemical change
liquid
wavelength
13. Number of waves that pass a given point in a specific time - usually one second.
pure substance
electromagnetic radiation
frequency
electron configuration
14. The arrangement of electrons in an atom
physical change
electron configuration
accuracy
quantity
15. The energy required to remove one electron from a neutral atom of an element.
ionization energy
Quantum Theory
model
photoelectric effect
16. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
system
alkali metals
atom
reactant
17. The measurement system accepted worldwide
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18. 1/2 the distance between the nuclei of identical atoms that are bonded together.
mass
atomic radius
period
isotopes
19. The ability of a substance to undergo a change that transforms it into a different substance
ionization
photoelectric effect
electromagnetic spectrum
chemical property
20. The total amount of energy level an atom has.
hertz
Principle Quantum Number
Spin Quantum Number
line-emission spectrum
21. A property that depends on the amount of matter that is present
ion
direct proportion
atom
extensive property
22. 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
solid
law of multiple proportions
density
chemical change
23. Two quantities that have a constant mathematical product
lanthanide
noble gas
scientific notation n where the factor M is a scientific notation
inverse proportion
24. A high-temperature physical state of matter in which atoms lose their electrons
cation
pure substance
plasma
system
25. A pure substance made of only one kind of atom
ion
chemical change
Quantum Numbers
element
26. The state of matter in which the substance has definite volume and definite shape
percent error
nonmetal
heterogeneous
solid
27. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
ionization energy
product
electronegativity
pure substance
28. Which suborbital. (Py - Px - Pz)
Magnetic Quantum Number
law of definite proportions
chemistry
noble gas configuration
29. Minimum quantity of energy that can be lost or gained by an atom.
Aufaub principle
extensive property
quantum
electromagnetic radiation
30. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
mixture
weight
cation
31. An element that is a good conductor of heat and electricity
chemical property
quantum
metal
group
32. The general term for any isotope of any element
periodic law
orbital
quantity
nuclide
33. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
nuclear force
significant figure
extensive property
alkaline-earth metals
34. A vertical column of the periodic table
direct proportion
atomic mass unit
derived unit
family
35. An element that has some characteristics of metals and some characteristics of nonmetals
continuous spectrum
metalloid
product
ionization
36. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
Angular Momentum Quantum Number
solid
mole
quantity
37. Something that has magnitude - size - or amount
quantity
hertz
period
transition metals
38. Any process that results in the formation of an ion.
theory
derived unit
liquid
ionization
39. An electron occupies the lowest-energy orbital that can receive it
photoelectric effect
mass number
Aufaub principle
solid
40. Anything that has mass and takes up space
matter
group
physical change
valence electrons
41. Which way it spins. (up or down)
Spin Quantum Number
electron configuration
heterogeneous
atomic mass unit
42. A change in which one or more substances are converted into different substances
mass number
chemical change
chemical reaction
chemical
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
periodic law
Spin Quantum Number
law of definite proportions
intensive property
44. 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
excited state
pure substance
electron affinity
mass
45. The energy change that occurs when an electron is acquired by a neutral atom.
chemical property
electron affinity
homogeneous
Hund's rule
46. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
element
ground state
conversion factor
atomic mass unit
47. The elements of group 1 of the periodic table.
alkali metals
law of definite proportions
chemical property
change of state
48. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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49. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
precision
excited state
scientific notation n where the factor M is a scientific notation
Heisenberg Uncertainty Principle
50. A substance that reacts in a chemical change
noble gas configuration
isotopes
weight
reactant
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