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Test your basic knowledge |
CSET Chemistry
Start Test
Study First
Subjects
:
cset
,
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. Their ability to retain their shape
solids characterized by
Boyle's Law
makeup of atom
compounds written with
2. Tiny molecules moving at a speed dependent on temperature
gases are a swarm of
ions
acids & bases
solids characterized by
3. There is no gain or loss of mass in a chemical change
compounds
soltion
law of conservation of mass
number of neutrons almost equals
4. 10
electronically neutral atom
electrically neutral atoms may share
weak base
neutron =
5. Acids
nucleus
solubility of gases decreases
- ions have _____ electrons
middle of periodic table
6. Insulator - but may be a conductor by adding an electrolyte
pure water is a fine
Russian Mendeleev (1869)
the number of protons establishes
electronically neutral atom
7. Symbols and subscripts showing number of atoms
atoms
gases are a swarm of
what acids and bases dissociate in
compounds written with
8. Number of molecules of formula units of the reactants and products
chemical reactions show the
+ ions have _____ electrons
pure water is a fine
the number of protons establishes
9. Homogeneous substance of constant composition formed by a chemical union of elements
octet rule
Vapor
compounds
electrolyte is a substance that
10. No chemical compounds
ions
right side of periodic table
concentration of solution is
makeup of atom
11. Occupies space and has mass
atom
size of atom determine
matter
left side of periodic table
12. Aqueous solutions & modify the concentration of hydrogen ions
soltion
gas expands
what acids and bases dissociate in
elements
13. The nucleus
neutrons stabilize
acids & bases
evaporization
solid - liquid - gas is dependent on
14. water is boiled to...
precipitation of a salt occurs when
elements
Vapor
ionic bond
15. Concentration of solute that a solution can hold
solubility of a substance is
right side of periodic table
Frenchman Lavoisier (1780)
Vapor
16. water is impure with dissolved
electrically neutral atoms may share
conditions necessary for reaction
ions
Salts and gases
17. Water
alkali metals
what bases contain
aqueous solution has _____ as solvent
solubility of gases decreases
18. Electrons = protons
law of conservation of mass
electronically neutral atom
liqids take on shape
solubility of a substance is
19. Number of protons
strong base
number of neutrons almost equals
middle of periodic table
Salts and gases
20. Attraction of different charges
most compounds contain
ionic bond
law of conservation of mass
alkali metals
21. As an ionic melt or solution conducts electricity
electron =
chemical elements
gas volums is determined by
electroloysis occurs
22. Protons + neutrons
mass =
chemists
subatomic particles
solubility of gases decreases
23. Compressible
atom
+ ions have _____ electrons
gas is a _____ fluid
compounds
24. 4 <-- 0
+1 --> +5
Frenchman Lavoisier (1780)
middle of periodic table
in most cases at least on ion is
25. Group of elements with similar chemical properties
what acids and bases are measured by
Avogadro proposed that
vertical columns
left side of periodic table
26. Some molecules in liquid have gained enough energy the attractive forces and become a gas
chemical
melt when heated - vaporize slightly
aqueous solution has _____ as solvent
evaporization
27. Chemical nature
precipitation of a salt occurs when
conditions necessary for reaction
the number of protons establishes
Salts and gases
28. Splitting of atom
alkali metals
0 degrees celcius
number of neutrons almost equals
subatomic particles
29. Element behavior repeats every 8 atomic number
octet rule
acids & bases
neutralization
Salts and gases
30. Gained
chemical
the number of protons establishes
subatomic particles
- ions have _____ electrons
31. water may be purified by...
size of atom determine
chemists
Distillation
+ ions have _____ electrons
32. Nuclear protons
acids & bases
ions
+1 --> +5
electronis are in shells around
33. Reaction of an acid with a base (releases some heat)
metals have _____ valences
in most cases at least on ion is
compounds
neutralization
34. Study substances by measuring properties and observing changes
gas is a _____ fluid
Boyle's Law
chemists
weak acid pH
35. Increasing atomic # - left to right
number of neutrons almost equals
gases are a swarm of
concentration of solution is
charted by
36. By nucleus
size of atom determine
melt when heated - vaporize slightly
electrolyte is a substance that
nonmetals have ____ valences
37. Heat - light - catalyst
proton =
conditions necessary for reaction
solids characterized by
Avogadro proposed that
38. Bases
chemistry
chemists
melt when heated - vaporize slightly
left side of periodic table
39. + 1
+1 --> +5
proton =
solubility of gases decreases
neutral pH
40. Atomic # = # of protons
strong acid pH
chemical elements
vertical columns
gas volums is determined by
41. Equal molecules are contained in equal volumes of all gases - if pressure and temp are identical
electronis are in shells around
Vapor
Avogadro proposed that
liqids take on shape
42. Solutions with unusual concentrations of either hydrogen or hydroxyl ions
neutralization
evaporization
acids & bases
chemists
43. Boiling
100 degree celcius
matter
chemical elements
Vapor
44. Smallest particles of chemical elements
electron =
electrolyte is a substance that
chemical
atoms
45. 4
nucleus
weak acid pH
what acids and bases are measured by
atomic weight determined
46. 1
electrically neutral atoms may share
strong acid pH
solids characterized by
chemists
47. To full available space
elements
electrolyte is a substance that
gas expands
acids & bases
48. Summarizes the chemical behavior of the element
valence number
conditions necessary for reaction
chemical elements
proton =
49. Temperature and pressure
makeup of atom
solid - liquid - gas is dependent on
ions form when
atoms
50. Compounds disassociate in solution to + or - particles
solids characterized by
ions form when
precipitation of a salt occurs when
vertical columns