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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. Gas volume varies directly with temperature
2. Study substances by measuring properties and observing changes
nonmetals have ____ valences
strong acid pH
alkali metals
chemists
3. Amount of solute dissolved in a standard unit of solvent
Avogadro's number =
what acids and bases are measured by
concentration of solution is
+ ions have _____ electrons
4. Electrons to form a covalent bond
matter
pure water is a fine
Avogadro proposed that
electrically neutral atoms may share
5. Hydrogen that is loosely bound
solubility of gases decreases
neutral pH
100 degree celcius
acids contain
6. By nucleus
Avogadro proposed that
atoms
size of atom determine
aqueous solution has _____ as solvent
7. PH
bonds between atoms
subatomic particles
concentration of solution is
what acids and bases are measured by
8. Number of molecules of formula units of the reactants and products
100 degree celcius
Vapor
chemical reactions show the
chemistry
9. Positive
metals have _____ valences
strong acid pH
+1 --> +5
bonds between atoms
10. water is boiled to...
ions form when
alkali metals
Vapor
gas is a _____ fluid
11. water may be purified by...
octet rule
Distillation
chemistry
Charles' Law
12. Smallest particles of chemical elements
100 degree celcius
gas expands
Avogadro's number =
atoms
13. Some molecules in liquid have gained enough energy the attractive forces and become a gas
what acids and bases dissociate in
mass =
solubility of gases decreases
evaporization
14. water is impure with dissolved
atom
Of living creatures and the environment
Avogadro proposed that
Salts and gases
15. + 1
neutralization
proton =
Vapor
compounds written with
16. Freezing
solubility of a substance is
compounds written with
0 degrees celcius
size of atom determine
17. water is a major constituent
neutralization
Of living creatures and the environment
proton =
weak acid pH
18. A mixture of two or more substances
atom
soltion
pure water is a fine
ions form when
19. Symbols and subscripts showing number of atoms
electrolyte is a substance that
electron =
compounds written with
most solutions have a _____ solvent
20. Water
aqueous solution has _____ as solvent
compounds
valence number
nonmetals have ____ valences
21. Negative
chemical reactions show the
nonmetals have ____ valences
0 degrees celcius
makeup of atom
22. Increases with high temperatures
what acids and bases are measured by
solubility of solids
Frenchman Lavoisier (1780)
gases are a swarm of
23. Reaction of an acid with a base (releases some heat)
electronically neutral atom
Of living creatures and the environment
neutralization
precipitation of a salt occurs when
24. Law of conversation of mass
Frenchman Lavoisier (1780)
+1 --> +5
ions
electronis are in shells around
25. Protons + neutrons
chemical
number of neutrons almost equals
electroloysis occurs
mass =
26. Nuclear protons
electronis are in shells around
chemists
Russian Mendeleev (1869)
compounds
27. Electrons = protons
electronically neutral atom
Frenchman Lavoisier (1780)
precipitation of a salt occurs when
size of atom determine
28. There is no gain or loss of mass in a chemical change
weak acid pH
atom
law of conservation of mass
the number of protons establishes
29. The science of substances that make up our world
matter
gases are a swarm of
chemistry
neutrons stabilize
30. Chemical nature
middle of periodic table
the number of protons establishes
acids & bases
subatomic particles
31. Complex (containing several atoms)
in most cases at least on ion is
acids & bases
what acids and bases are measured by
octet rule
32. Lost
+ ions have _____ electrons
makeup of atom
atomic weight determined
Of living creatures and the environment
33. Liquid
solubility of gases decreases
liquid state between
atomic weight determined
most solutions have a _____ solvent
34. Heat - light - catalyst
solubility of gases decreases
most solutions have a _____ solvent
conditions necessary for reaction
gas expands
35. Summarizes the chemical behavior of the element
mass =
valence number
electron =
electrically neutral atoms may share
36. Group of elements with similar chemical properties
+1 --> +5
vertical columns
electroloysis occurs
solubility of solids
37. Insulator - but may be a conductor by adding an electrolyte
neutron =
pure water is a fine
Englishman John Dalton (1805)
conditions necessary for reaction
38. With high temperature
solubility of gases decreases
compounds written with
what acids and bases dissociate in
middle of periodic table
39. Temperature and pressure
solid - liquid - gas is dependent on
electrolyte is a substance that
Vapor
Russian Mendeleev (1869)
40. Gained
- ions have _____ electrons
Charles' Law
conditions necessary for reaction
weak base
41. Any tangible matter is _____ in nature
chemical
conditions necessary for reaction
neutral pH
solubility of a substance is
42. Splitting of atom
subatomic particles
Salts and gases
weak acid pH
atom
43. As an ionic melt or solution conducts electricity
gas is a _____ fluid
nonmetals have ____ valences
electroloysis occurs
+1 --> +5
44. Reactive - form bases
alkali metals
solubility of gases decreases
neutrons stabilize
chemistry
45. Protons (1 amu) - neutrons (1 amu) - electrons (0 amu)
octet rule
atom
number of neutrons almost equals
makeup of atom
46. Atoms with an electrical charge
soltion
compounds
neutral pH
ions
47. Devised periodic table
pure water is a fine
Russian Mendeleev (1869)
Vapor
size of atom determine
48. Concentration of solute that a solution can hold
solubility of a substance is
gas volums is determined by
pure water is a fine
Distillation
49. 4 <-- 0
solubility of gases decreases
neutrons stabilize
elements
+1 --> +5
50. 4
liqids take on shape
atomic weight determined
neutron =
weak acid pH