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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. A high-temperature physical state of matter in which atoms lose their electrons
plasma
atomic number
law of conservation of mass
lanthanide
2. A change in which one or more substances are converted into different substances
chemical change
atom
hypothesis
Quantum Numbers
3. Combination of all the forms of electromagnetic radiation.
density
law of multiple proportions
electromagnetic spectrum
cation
4. 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.
periodic table
atomic mass unit
plasma
theory
5. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
inverse proportion
atom
atomic mass unit
scientific method
6. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
Pauli exclusion principle
quantum
significant figure
extensive property
7. Mass is neither created nor destroyed duringordinary chemical or physical reactions
Principle Quantum Number
physical property
noble gas
law of conservation of mass
8. The ratio of mass to volume or mass divided by volume
density
ion
law of multiple proportions
mole
9. A substance that is formed by a chemical change
weight
model
halogens
product
10. The mass of one mole of a pure substance
ionization energy
quantity
mixture
molar mass
11. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
period
electron affinity
atomic number
12. A broad generalization that explains a body of facts or phenomena
theory
chemical reaction
molar mass
periodic table
13. A property that does not depend on the amount of matter present
ground state
intensive property
physical property
Avogadro's number
14. Any process that results in the formation of an ion.
law of multiple proportions
ionization
pure substance
family
15. An atom or group of bonded atoms that has a positive or negative charge.
chemical property
Heisenberg Uncertainty Principle
ion
density
16. The smallest unit of an element that maintains the properties of that element
change of state
atom
electron affinity
model
17. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
Spin Quantum Number
compound
metal
scientific notation n where the factor M is a scientific notation
18. 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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19. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
noble gas configuration
family
halogens
20. A substance that reacts in a chemical change
reactant
system
electron configuration
main-group elements
21. The amount of space occupied by an object
cation
direct proportion
volume
atom
22. The general term for any isotope of any element
Aufaub principle
nuclide
atomic number
extensive property
23. The total amount of energy level an atom has.
Principle Quantum Number
alkaline-earth metals
law of definite proportions
average atomic mass
24. An element that is a good conductor of heat and electricity
metal
excited state
orbital
law of definite proportions
25. Which suborbital. (Py - Px - Pz)
Magnetic Quantum Number
nuclide
Quantum Theory
conversion factor
26. Having a uniform composition throughout
homogeneous
element
wavelength
chemical change
27. The 14 elements with the atomic numbers 90-103.
product
actinide
system
main-group elements
28. The closeness of measurements to the correct or accepted value of the quantity measured
hypothesis
nonmetal
molar mass
accuracy
29. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
model
Heisenberg Uncertainty Principle
Angular Momentum Quantum Number
nuclide
30. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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31. The energy required to remove one electron from a neutral atom of an element.
ionization energy
physical change
atom
atomic number
32. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
atom
nuclear force
precision
direct proportion
33. The measurement system accepted worldwide
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34. 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
precision
law of multiple proportions
family
Magnetic Quantum Number
35. 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
compound
law of definite proportions
Principle Quantum Number
ground state
36. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
ionization energy
chemical reaction
line-emission spectrum
isotopes
37. The ability of a substance to undergo a change that transforms it into a different substance
inverse proportion
metalloid
Quantum Numbers
chemical property
38. Minimum quantity of energy that can be lost or gained by an atom.
quantum
scientific notation n where the factor M is a scientific notation
ion
pure substance
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
Principle Quantum Number
orbital
percent error
Spin Quantum Number
40. The state of matter in which the substance has definite volume and definite shape
chemical reaction
conversion factor
solid
homogeneous
41. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
mole
theory
percent error
photon
42. Atoms of the same element that have different masses
percent error
mixture
change of state
isotopes
43. A change in a substance that does not involve a change in the identity of the substance
physical change
significant figure
electronegativity
chemical change
44. A testable statement
mass number
electron configuration
hypothesis
density
45. Which way it spins. (up or down)
isotopes
Magnetic Quantum Number
Spin Quantum Number
alkaline-earth metals
46. The arrangement of electrons in an atom
electron configuration
volume
ionization
accuracy
47. A pure substance made of only one kind of atom
element
atomic radius
excited state
Principle Quantum Number
48. An element that has some characteristics of metals and some characteristics of nonmetals
electron affinity
metalloid
law of multiple proportions
mixture
49. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
solid
transition metals
law of multiple proportions
50. The emission of a continuous range of frequencies of electromagnetic radiation.
homogeneous
frequency
significant figure
continuous spectrum