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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. Temperature and pressure
in most cases at least on ion is
solid - liquid - gas is dependent on
what acids and bases are measured by
Charles' Law
2. + 1
Boyle's Law
ions form when
proton =
neutrons stabilize
3. Hydroxides of alkaline metals
precipitation of a salt occurs when
solubility of a substance is
makeup of atom
what bases contain
4. There is no gain or loss of mass in a chemical change
ionic bond
subatomic particles
law of conservation of mass
weak acid pH
5. Heat - light - catalyst
Charles' Law
most compounds contain
chemists
conditions necessary for reaction
6. Solid and gas
pure water is a fine
+ ions have _____ electrons
weak base
liquid state between
7. 10
pure water is a fine
Russian Mendeleev (1869)
Frenchman Lavoisier (1780)
weak base
8. Protons + neutrons
acids contain
chemical
number of neutrons almost equals
mass =
9. Element behavior repeats every 8 atomic number
octet rule
atoms
vertical columns
strong base
10. Nuclear protons
gas expands
100 degree celcius
solubility of solids
electronis are in shells around
11. Small - dense nucleus of protons and neutrons
vertical columns
atom
valence number
Englishman John Dalton (1805)
12. Occupies space and has mass
matter
right side of periodic table
subatomic particles
valence number
13. Splitting of atom
in most cases at least on ion is
solid - liquid - gas is dependent on
conditions necessary for reaction
subatomic particles
14. water may be purified by...
evaporization
Frenchman Lavoisier (1780)
conditions necessary for reaction
Distillation
15. 4
bonds between atoms
weak base
weak acid pH
Englishman John Dalton (1805)
16. Temperature and pressure
proton =
liqids take on shape
gas volums is determined by
mass =
17. Positive
Charles' Law
metals have _____ valences
law of conservation of mass
nonmetals have ____ valences
18. Reaction of an acid with a base (releases some heat)
gas volums is determined by
nucleus
neutralization
Charles' Law
19. Are electronic
strong base
neutralization
liqids take on shape
bonds between atoms
20. With high temperature
solubility of gases decreases
+ ions have _____ electrons
electroloysis occurs
neutron =
21. Homogeneous substance of constant composition formed by a chemical union of elements
alkali metals
liquid state between
weak acid pH
compounds
22. By nucleus
vertical columns
nonmetals have ____ valences
atomic weight determined
acids & bases
23. Equal molecules are contained in equal volumes of all gases - if pressure and temp are identical
Avogadro proposed that
compounds written with
liquid state between
neutron =
24. Metallic and nonmetallic elements in proportions so that their valences sum to zero
chemical
neutron =
most compounds contain
electrically neutral atoms may share
25. Gas volume varies directly with temperature
26. Simplest chemical substances
weak acid pH
Vapor
elements
metals have _____ valences
27. Freezing
aqueous solution has _____ as solvent
conditions necessary for reaction
0 degrees celcius
Distillation
28. Amount of solute dissolved in a standard unit of solvent
atom
concentration of solution is
solubility of a substance is
solids characterized by
29. Smallest particles of chemical elements
solids characterized by
compounds
atoms
electronis are in shells around
30. Liquid
strong acid pH
most solutions have a _____ solvent
alkali metals
octet rule
31. 1
concentration of solution is
electron =
the number of protons establishes
+ ions have _____ electrons
32. Insulator - but may be a conductor by adding an electrolyte
- ions have _____ electrons
pure water is a fine
electron =
octet rule
33. Protons (1 amu) - neutrons (1 amu) - electrons (0 amu)
what acids and bases dissociate in
octet rule
makeup of atom
the number of protons establishes
34. To full available space
gas expands
solubility of gases decreases
vertical columns
weak acid pH
35. Atoms with an electrical charge
weak base
ions
number of neutrons almost equals
matter
36. Lost
subatomic particles
Salts and gases
+ ions have _____ electrons
solubility of gases decreases
37. 6 x 10 (ss 23) in 22.4 liters of gas
38. Summarizes the chemical behavior of the element
valence number
pure water is a fine
Salts and gases
weak acid pH
39. Number of protons
number of neutrons almost equals
acids contain
neutralization
compounds written with
40. Compressible
nonmetals have ____ valences
gas is a _____ fluid
neutrons stabilize
size of atom determine
41. Increasing atomic # - left to right
neutralization
charted by
+1 --> +5
chemical elements
42. Boiling
electrically neutral atoms may share
valence number
100 degree celcius
Vapor
43. 0
neutron =
the number of protons establishes
metals have _____ valences
in most cases at least on ion is
44. Solutions with unusual concentrations of either hydrogen or hydroxyl ions
pure water is a fine
elements
+ ions have _____ electrons
acids & bases
45. water is a major constituent
left side of periodic table
Of living creatures and the environment
makeup of atom
what acids and bases dissociate in
46. Electrons = protons
- ions have _____ electrons
octet rule
in most cases at least on ion is
electronically neutral atom
47. A mixture of two or more substances
right side of periodic table
Distillation
soltion
strong base
48. Atomic # = # of protons
chemical elements
left side of periodic table
right side of periodic table
compounds
49. The nucleus
mass =
neutrons stabilize
matter
gas is a _____ fluid
50. Volume varies inversely with pressure