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Test your basic knowledge |
CSET Science: Chemistry
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Subjects
:
cset
,
science
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
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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. Occurs when one compound is replaced by an atom of another element like zinc metal
pH
nucleus
single displacement reaction
electron affinity
2. Hydrocarbons taht also include oxygen - like alcohols - carbohydrates
organic compounds
HCL
alpha decay
chemical reaction
3. Metals like calcium that produce alkaline solutions when combined with water. Part of Group IIA. Have two electrons in their outer shells
condensation
electronegativity
alkaline earth metals
semi - metals
4. When two different substances combine to form a new substance or when a substance breaks down to form two different substance.
alkali metals
nitrogen - containing compounds
chemical reaction
H2O
5. Distilled water - which has the ph level of 7
half - life
cations
ph neutral
decomposition reaction
6. When two reactants form one product - like sulfur dioxide by burning sulfur in the air
pH
combination reaction
evaporation
atomic radius
7. Radioactive decay in which half of a sample decays
neutralization reaction
sublimation
half - life
cations
8. Small component of an atom that has a positive electrical charge
poor metals
protons
electronegativity
electrons
9. Measures of an attraction that an atom has ffor electrons in a chemical bond
alkenes
beta decay
electronegativity
sublimation
10. Small component of an atom that has no electrical charge
decomposition reaction
isotopes
neutron
valence shell
11. A chemical that is sour and stings and receives positive charged atoms when they are dissolved in water
atomic number
single displacement reaction
acid
protons
12. When elements from two different compounds didsplace each other to form new compounds - like when solutions of CaCl and HgNi combine to form insoluble HgCl and CaNi
molecules
ion
double displacement reaction
protons
13. The process in which a solid can become a gas - like dry ice
nitrogen - containing compounds
sublimation
periods
noble gas
14. Move around the nucleus at the speed of light and have a negative charge
condensation
electrons
cations
sublimation
15. Ammonia
NH3
stoichiometry
beta decay
chemical reaction
16. Radioactive decay that leads to an emission of Helium -4 ion
alpha decay
nonmetals
atomic radius
stoichiometry
17. The decay of a nuclei which results in the emission of certain particlces
nucleus
radioactive decay
anions
alkenes
18. Negative charged ions
covalent bond
anions
pH
gamma decay
19. The idea that 1. gaes are made up of particles - 2. gas atoms do not exhibit intermolecular attraactions or repulsions - 3. gas particles are in continuous random motions - 4. collisiosn between two gas particles is not dissipated - and 5. the averag
kinetic molecular theory of gas
electronegativity
decomposition reaction
cations
20. Components made up of a combination of atoms
ionization energy
acid
pH
molecules
21. The way of ordering the periodic table based on how many protons there are
alkenes
atom
periods
groups
22. An atom that has an electrical charge
atomic radius
ion
hydrocarbons
bases
23. Carbons that consist of both hydrogen and carbon atoms and can be alkanes - alkenes - akynes - adn aromatics
nucleus
hydrocarbons
stoichiometry
deposition
24. The outer electron in a shell
protons
H2O
NaCl
valence shell
25. The degree that two liquids can mix together
alkenes
miscibility
evaporation
nucleus
26. Anything that has mass and takes up space
atomic mass unit
matter
condensation
cations
27. Hydrocarbons that include carbon - carbon triple bonds
sublimation
neutron
valence shell
alkynes
28. Hydrochloric acid
poor metals
HCL
atom
H2O
29. Metals that have low melting points
covalent bond
poor metals
alkenes
radioactive decay
30. The process of balancing chemical equations
nucleus
evaporation
semi - metals
stoichiometry
31. Metals mostly found in the middle of the table that are small and shiny. They are hard and have high melting and boiling points
transition metals
nucleus
halogens
molecules
32. A chemical bond in which two atoms share electrons like H2.
covalent bond
miscibility
atom
nonmetals
33. Part of group VIIA and are highly reactive nonmetals. They have seven valence electrons and range from bein ggaseous to solids. Includes fluoride - chloride - and iodine
decomposition reaction
atom
atomic radius
halogens
34. The transition from a gas into a solid
covalent bond
bases
deposition
organic compounds
35. The chemical potential for hydrogen - which determines whether or not a chemical is an acid or base
gamma decay
alkanes
hydrocarbons
pH
36. Energy released when an electron is added to a gaseous atom
kinetic molecular theory of gas
electrons
evaporation
electron affinity
37. 1.66 x 10^-24 g
isotopes
atomic mass unit
neutron
single displacement reaction
38. Radioactive decay that leads to the emission of gamma particles
beta decay
gamma decay
atom
nitrogen - containing compounds
39. When a compound breaks down into two or more substances by heating - like the break down of mercury oxide
alkali metals
electrons
decomposition reaction
nitrogen - containing compounds
40. Metals that have a variety of property that include carbon - nitrogen and oxygen vital to the earth
matter
alkanes
nonmetals
periods
41. Water
nucleus
H2O
hydrocarbons
nonmetals
42. Organic compounds that contain nitrogen - including protein
alkaline earth metals
atomic radius
electrons
nitrogen - containing compounds
43. Radioactive decay in which a beta particle - aka an electron - is emitted
alkenes
NH3
beta decay
HCL
44. Sodium
NaCl
semi - metals
stoichiometry
cations
45. The center of an atom - which contains protons and neutrons
bases
anions
stoichiometry
nucleus
46. The conversion of a gas back into a liquid
condensation
double displacement reaction
decomposition reaction
isotopes
47. Hydrocarbons that involve carbon - carbon double bonds
atomic mass unit
alkenes
atomic radius
hydrocarbons
48. A specific type of double deplacement when an acid reactts with a base to form salt and water
H2O
nonmetals
neutron
neutralization reaction
49. The energy required to completely remove an electron from an atom or an ion to make it ositive. the energy increases from left to right as the atomic radius diecreases
NaCl
ionization energy
noble gas
alkenes
50. Hydrocarbons that have single bonds with a prefix to show the number of carbon atoms - like methane - ethane - propane - butane - pentane - and hexane
alkanes
ionic bond
halogens
atomic radius
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