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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. By nucleus
atomic weight determined
+ ions have _____ electrons
100 degree celcius
chemical
2. Gained
neutral pH
charted by
- ions have _____ electrons
nucleus
3. Devised periodic table
chemical elements
makeup of atom
Russian Mendeleev (1869)
neutral pH
4. 13
Of living creatures and the environment
precipitation of a salt occurs when
Vapor
strong base
5. Increases with high temperatures
solubility of solids
electrolyte is a substance that
mass =
chemical elements
6. Study substances by measuring properties and observing changes
Englishman John Dalton (1805)
acids & bases
pure water is a fine
chemists
7. Small - dense nucleus of protons and neutrons
aqueous solution has _____ as solvent
atom
elements
proton =
8. Freezing
acids & bases
in most cases at least on ion is
+ ions have _____ electrons
0 degrees celcius
9. Some molecules in liquid have gained enough energy the attractive forces and become a gas
evaporization
atomic weight determined
Charles' Law
vertical columns
10. water is boiled to...
electron =
most solutions have a _____ solvent
vertical columns
Vapor
11. Concentration of solute that a solution can hold
law of conservation of mass
solubility of a substance is
proton =
Frenchman Lavoisier (1780)
12. Metallic and nonmetallic elements in proportions so that their valences sum to zero
most compounds contain
Avogadro proposed that
matter
makeup of atom
13. Boiling
what acids and bases are measured by
makeup of atom
most solutions have a _____ solvent
100 degree celcius
14. Summarizes the chemical behavior of the element
chemists
gas expands
valence number
electronis are in shells around
15. Amount of solute dissolved in a standard unit of solvent
concentration of solution is
size of atom determine
number of neutrons almost equals
electronically neutral atom
16. 6 x 10 (ss 23) in 22.4 liters of gas
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17. The science of substances that make up our world
Salts and gases
chemistry
solid - liquid - gas is dependent on
liqids take on shape
18. Smallest partical atom makes up elements which makes up compounds
most solutions have a _____ solvent
Englishman John Dalton (1805)
melt when heated - vaporize slightly
ions
19. Heat - light - catalyst
conditions necessary for reaction
atomic weight determined
100 degree celcius
acids contain
20. By nucleus
Frenchman Lavoisier (1780)
chemists
size of atom determine
Boyle's Law
21. Occupies space and has mass
nonmetals have ____ valences
matter
weak base
+ ions have _____ electrons
22. With high temperature
solubility of gases decreases
compounds
neutrons stabilize
Of living creatures and the environment
23. Volume varies inversely with pressure
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24. Insulator - but may be a conductor by adding an electrolyte
atoms
pure water is a fine
concentration of solution is
matter
25. Number of protons
number of neutrons almost equals
compounds
pure water is a fine
weak acid pH
26. There is no gain or loss of mass in a chemical change
most compounds contain
gas expands
most solutions have a _____ solvent
law of conservation of mass
27. Positive
charted by
Salts and gases
pure water is a fine
metals have _____ valences
28. Simplest chemical substances
Vapor
elements
nucleus
electronically neutral atom
29. Hydrogen that is loosely bound
metals have _____ valences
Boyle's Law
acids contain
+1 --> +5
30. Aqueous solutions & modify the concentration of hydrogen ions
left side of periodic table
what acids and bases dissociate in
most solutions have a _____ solvent
chemical reactions show the
31. Law of conversation of mass
electron =
compounds
Frenchman Lavoisier (1780)
electrolyte is a substance that
32. Tiny molecules moving at a speed dependent on temperature
octet rule
solubility of gases decreases
gases are a swarm of
acids & bases
33. Reaction of an acid with a base (releases some heat)
neutralization
compounds
octet rule
valence number
34. A mixture of two or more substances
nonmetals have ____ valences
soltion
in most cases at least on ion is
acids & bases
35. + 1
melt when heated - vaporize slightly
law of conservation of mass
proton =
solubility of solids
36. Liquid
subatomic particles
most solutions have a _____ solvent
mass =
middle of periodic table
37. Compressible
what bases contain
gas is a _____ fluid
acids & bases
acids contain
38. Smallest particles of chemical elements
ions
atoms
acids & bases
- ions have _____ electrons
39. Compounds disassociate in solution to + or - particles
ions form when
chemical reactions show the
the number of protons establishes
matter
40. Complex (containing several atoms)
chemistry
in most cases at least on ion is
ions form when
law of conservation of mass
41. As an ionic melt or solution conducts electricity
evaporization
electroloysis occurs
concentration of solution is
Englishman John Dalton (1805)
42. Splitting of atom
chemical elements
nucleus
+ ions have _____ electrons
subatomic particles
43. Symbols and subscripts showing number of atoms
mass =
chemistry
compounds written with
ions form when
44. Temperature and pressure
compounds
gas volums is determined by
ions form when
electrically neutral atoms may share
45. Solids
+ ions have _____ electrons
electronically neutral atom
most solutions have a _____ solvent
melt when heated - vaporize slightly
46. Atomic # = # of protons
chemical elements
chemists
chemical reactions show the
acids & bases
47. Increasing atomic # - left to right
most solutions have a _____ solvent
neutralization
+ ions have _____ electrons
charted by
48. Lost
bonds between atoms
+ ions have _____ electrons
number of neutrons almost equals
neutral pH
49. Nuclear protons
charted by
chemistry
electronis are in shells around
solubility of gases decreases
50. Electrons = protons
electroloysis occurs
subatomic particles
electronically neutral atom
solids characterized by