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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. Liquid
most solutions have a _____ solvent
metals have _____ valences
number of neutrons almost equals
evaporization
2. Temperature and pressure
solid - liquid - gas is dependent on
most compounds contain
chemical
nonmetals have ____ valences
3. 1
acids & bases
chemical reactions show the
what acids and bases are measured by
strong acid pH
4. The nucleus
chemical reactions show the
neutrons stabilize
precipitation of a salt occurs when
electrolyte is a substance that
5. Homogeneous substance of constant composition formed by a chemical union of elements
evaporization
solubility of solids
makeup of atom
compounds
6. Boiling
100 degree celcius
melt when heated - vaporize slightly
nucleus
liquid state between
7. Protons + neutrons
chemistry
mass =
- ions have _____ electrons
atoms
8. Lost
+ ions have _____ electrons
nonmetals have ____ valences
chemical elements
chemistry
9. By nucleus
atomic weight determined
the number of protons establishes
neutral pH
weak base
10. To full available space
neutrons stabilize
ions
gas expands
chemical reactions show the
11. Their ability to retain their shape
solids characterized by
concentration of solution is
electronically neutral atom
elements
12. Of containers - and can not be compressed
liqids take on shape
Salts and gases
mass =
chemical elements
13. 4
Distillation
valence number
weak acid pH
bonds between atoms
14. PH
what acids and bases are measured by
0 degrees celcius
chemistry
electroloysis occurs
15. water may be purified by...
Distillation
bonds between atoms
nucleus
pure water is a fine
16. Increasing atomic # - left to right
electronically neutral atom
- ions have _____ electrons
charted by
what bases contain
17. Concentration of solute that a solution can hold
melt when heated - vaporize slightly
chemistry
solubility of a substance is
the number of protons establishes
18. Symbols and subscripts showing number of atoms
gases are a swarm of
makeup of atom
compounds written with
valence number
19. Hydroxides of alkaline metals
what bases contain
chemical elements
middle of periodic table
Russian Mendeleev (1869)
20. Hydrogen that is loosely bound
weak base
acids contain
neutral pH
Salts and gases
21. Temperature and pressure
Boyle's Law
acids contain
gas volums is determined by
left side of periodic table
22. Compounds disassociate in solution to + or - particles
chemistry
concentration of solution is
ions form when
right side of periodic table
23. Summarizes the chemical behavior of the element
liqids take on shape
liquid state between
valence number
precipitation of a salt occurs when
24. 13
strong base
elements
Salts and gases
Englishman John Dalton (1805)
25. Study substances by measuring properties and observing changes
nonmetals have ____ valences
chemists
atom
gas is a _____ fluid
26. Electrons = protons
+ ions have _____ electrons
weak acid pH
electronically neutral atom
ionic bond
27. Solutions with unusual concentrations of either hydrogen or hydroxyl ions
Avogadro's number =
acids & bases
electronis are in shells around
ionic bond
28. Some molecules in liquid have gained enough energy the attractive forces and become a gas
nucleus
number of neutrons almost equals
elements
evaporization
29. Are electronic
Vapor
charted by
bonds between atoms
makeup of atom
30. Equal molecules are contained in equal volumes of all gases - if pressure and temp are identical
left side of periodic table
solubility of gases decreases
Avogadro proposed that
octet rule
31. + 1
law of conservation of mass
proton =
compounds written with
Of living creatures and the environment
32. 10
evaporization
electrolyte is a substance that
chemistry
weak base
33. Negative
bonds between atoms
nonmetals have ____ valences
+ ions have _____ electrons
Charles' Law
34. Increases with high temperatures
solubility of solids
atoms
+1 --> +5
100 degree celcius
35. Attraction of different charges
ionic bond
Frenchman Lavoisier (1780)
liquid state between
precipitation of a salt occurs when
36. Aqueous solutions & modify the concentration of hydrogen ions
solubility of gases decreases
chemical
atoms
what acids and bases dissociate in
37. Chemical nature
chemical elements
valence number
the number of protons establishes
soltion
38. 6 x 10 (ss 23) in 22.4 liters of gas
39. Insulator - but may be a conductor by adding an electrolyte
- ions have _____ electrons
pure water is a fine
chemists
electrolyte is a substance that
40. water is impure with dissolved
+ ions have _____ electrons
Salts and gases
solids characterized by
gas volums is determined by
41. No chemical compounds
neutralization
right side of periodic table
most solutions have a _____ solvent
subatomic particles
42. Law of conversation of mass
evaporization
solids characterized by
atomic weight determined
Frenchman Lavoisier (1780)
43. Complex (containing several atoms)
in most cases at least on ion is
nucleus
chemists
pure water is a fine
44. Acids
middle of periodic table
the number of protons establishes
electronis are in shells around
solids characterized by
45. Smallest particles of chemical elements
electrolyte is a substance that
Avogadro proposed that
atoms
liqids take on shape
46. Positive
metals have _____ valences
Boyle's Law
electroloysis occurs
chemistry
47. As an ionic melt or solution conducts electricity
solid - liquid - gas is dependent on
compounds written with
electroloysis occurs
nonmetals have ____ valences
48. Devised periodic table
Charles' Law
Russian Mendeleev (1869)
right side of periodic table
Englishman John Dalton (1805)
49. Solids
solid - liquid - gas is dependent on
electroloysis occurs
melt when heated - vaporize slightly
middle of periodic table
50. Atomic # = # of protons
valence number
neutrons stabilize
concentration of solution is
chemical elements