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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. A substance that reacts in a chemical change
nuclear force
gas
Quantum Numbers
reactant
2. The smallest unit of an element that maintains the properties of that element
reactant
atom
Avogadro's number
SI (Le Système International d'Unités
3. The state of matter in which the substance has a definite volume but an indefinite shape
liquid
atomic radius
plasma
heterogeneous
4. The measurement system accepted worldwide
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5. Something that has magnitude - size - or amount
matter
quantity
molar mass
Quantum Numbers
6. The p-block elements together with the s-block elements.
main-group elements
physical change
alkaline-earth metals
law of multiple proportions
7. An explanation of how phenomena occur and how data or events are related
model
Hund's rule
Quantum Theory
ion
8. Describes mathematically the wave properties of electrons and other very small particles.
anion
Quantum Theory
ground state
matter
9. Emission of electrons from a metal when light shines on a metal.
ground state
photoelectric effect
intensive property
transition metals
10. Mass is neither created nor destroyed duringordinary chemical or physical reactions
law of conservation of mass
photon
line-emission spectrum
Heisenberg Uncertainty Principle
11. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
alkali metals
noble gas configuration
line-emission spectrum
Avogadro's number
12. Minimum quantity of energy that can be lost or gained by an atom.
mole
electron configuration
quantum
electronegativity
13. The suborbitals of an atom. (S - P - D - F)
excited state
Angular Momentum Quantum Number
theory
law of definite proportions
14. The ratio of mass to volume or mass divided by volume
nuclear force
density
physical change
halogens
15. Which suborbital. (Py - Px - Pz)
intensive property
element
Magnetic Quantum Number
theory
16. The number of protons in the nucleus of each atom of an element
scientific notation n where the factor M is a scientific notation
hertz
Avogadro's number
atomic number
17. Lowest energy state of an atom.
liquid
electronegativity
ion
ground state
18. The total number of protons and neutrons in the nucleus of an isotope
mass number
chemical
electron configuration
model
19. A characteristic that can be observed or measured without changing the identity of the substance
inverse proportion
gas
physical property
noble gas configuration
20. 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
actinide
atomic number
pure substance
21. The amount of space occupied by an object
pure substance
family
chemical change
volume
22. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
alkali metals
halogens
scientific method
chemical reaction
23. A pure substance made of only one kind of atom
element
Quantum Theory
anion
excited state
24. The closeness of measurements to the correct or accepted value of the quantity measured
reactant
solid
mixture
accuracy
25. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
homogeneous
inverse proportion
nuclear force
conversion factor
26. Having a uniform composition throughout
homogeneous
gas
nuclide
metal
27. The elements of group 2 of the periodic table.
quantum
alkaline-earth metals
inverse proportion
significant figure
28. The arrangement of electrons in an atom
change of state
atomic number
law of conservation of mass
electron configuration
29. An element that has some characteristics of metals and some characteristics of nonmetals
atom
family
direct proportion
metalloid
30. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
photon
isotopes
periodic table
chemistry
31. An electron occupies the lowest-energy orbital that can receive it
physical property
Aufaub principle
Avogadro's number
ground state
32. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
physical property
alkaline-earth metals
photoelectric effect
33. Which way it spins. (up or down)
electronegativity
Spin Quantum Number
atomic mass unit
Heisenberg Uncertainty Principle
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
ionization
law of multiple proportions
frequency
transition metals
35. A change in which one or more substances are converted into different substances
law of definite proportions
atomic radius
ionization energy
chemical change
36. Any process that results in the formation of an ion.
law of conservation of mass
matter
ionization
electron affinity
37. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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38. A measure of the amount of matter
volume
mass
homogeneous
law of conservation of mass
39. A unit that is a combination of SI base units
homogeneous
derived unit
quantum
periodic table
40. The state of matter in which the substance has definite volume and definite shape
reactant
solid
Quantum Numbers
liquid
41. An atom or group of bonded atoms that has a positive or negative charge.
Avogadro's number
gas
ion
law of conservation of mass
42. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
electronegativity
Quantum Numbers
chemistry
transition metals
43. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Heisenberg Uncertainty Principle
nuclear force
photon
inverse proportion
44. A substance that is made from the atoms of two or more elements that are chemically bonded
molar mass
line-emission spectrum
Quantum Numbers
compound
45. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
accuracy
heterogeneous
ionization energy
46. The total amount of energy level an atom has.
model
heterogeneous
Principle Quantum Number
Heisenberg Uncertainty Principle
47. The general term for any isotope of any element
solid
mixture
nuclide
alkaline-earth metals
48. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
atomic radius
period
Pauli exclusion principle
mole
49. 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
main-group elements
atomic radius
atomic mass unit
law of definite proportions
50. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
SI (Le Système International d'Unités
noble gas configuration
density
system
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