Quiz 9 Flashcards
- In testing a substance for the presence of glucose, it should be heated with
Benedict’s solution
iodine solution
glycagon
Burrough’s solution
Benedict’s solution
- As the number of neutrons in the nucleus of an atom increases, the atomic number of the atom
increases
decreases
remains the same
varies with the form of the isotope
remains the same
- The termed used to denote the deteriorative processes that occur with polymeric materials.
rusting
oxidation
corrosion
degradation
degradation
- Production of methane from solid waste is a/an
aerobic digestion
anaerobic digestion
aerobic respiration
anaerobic respiration
anaerobic digestion
- Which of the following will lower the pH of a citric acid solution?
adding acetate ions
adding citric acid
adding citrate ions
adding chloride ions
adding citric acid
- Which of the following is the strongest acid?
HOCl
HOBr
HOI
Hac
HOCl
- Of the following which is the strongest acid?
HClO4
HClO
HClO2
HClO3
HClO4
- The reason that some insects can walk on water is due to
surface tension
adhesive forces
vaporization
capillary action
surface tension
- Increasing the amount of liquid in a closed container will cause the vapor pressure of the liquid to
increase
decrease
remain the same
depends on the liquid
remain the same
- Which of the following is an exothermic process?
freezing
subliming
boiling
melting
freezing
- First ionization energy refers to
removal of an electron from a gas atom
trapping an ion in a lattice structure
energy to form the most probable ion
formation of a -1 anion
removal of an electron from a gas atom
- What is the molecular formula of silicon oxide?
SiO
Si2O
SiO4
SiO2
SiO2
- Two metals that each commonly form +1 and +2 ions in solution are
Cu and Hg
Au and Ag
Fe and Cu
Zn and Cd
Cu and Hg
- Hydroiodic acid contains how many elements?
1
2
3
4
2
- The common name of the oxide of nitrogen with the formula N2O is
nitrogen dioxide
nitrous oxide
nitric oxide
dinitrogen oxide
nitrous oxide
- Metallic elements are found where in the periodic table?
in the far left-hand and far right-hand groups
in the left-hand and middle groups
in the middle of the table and Group VIII A
only in Groups IA and IIA
in the left-hand and middle groups
- Metals have
both high electrical and high thermal conductivity
low cohesive strength and high luster
high electrical but low thermal conductivity
high luster and low ductility
both high electrical and high thermal conductivity
- Nonmetals are
malleable but not ductile
very reactive with acids
good conductors of electricity
able to form halides, which react with water to form an oxyacid
able to form halides, which react with water to form an oxyacid
- The halogens
will not react with each other
form strong oxyacids of the formula HOX3
are strong electron donors
form strong covalent bonds wit group IA metals
form strong oxyacids of the formula HOX3
- An organic compound has an empirical formula of C3H8O. This formula can represent
three alcohols
two alcohols and one ether
one organic acid
two ethers and one alcohol
two alcohols and one ether
- CH3—CH2—OH is
an aldehyde
an alcohol
an organic acid
a ketone
an alcohol
- CH3—CH= O is
an alcohol
an ester
an alkyne
an aldehyde
an aldehyde
- CH3–C≡N is
an amine
a nitrile
an amide
an azide
a nitrile
- It is a special type of intermolecular attraction that exists between the hydrogen atom in a polar bond (particularly an H-F, H-O or H-N bond) and an unshared electron pair on a nearby small electronegative ion or atom (usually an F, O or N atom on another molecule).
London dispersion force
hydrogen bonding
Van der Waals force
polar bond
hydrogen bonding
- The rise of liquids up very narrow tubes is called
surface tension
capillarity action
viscosity
buoyant force
capillarity action
- Sometimes as we remove heat from a liquid we can temporarily cool it below its freezing point without forming a solid. This phenomenon is called
fusion
supercooling
vaporization
sublimation
supercooling
- The highest temperature at which a substance can exist as liquid is called its
boiling point
melting point
critical temperature
Boyle temperature
critical temperature
- The triple point of water is
0°C, 1 atm
0.0098°C, 4.58 torr
374.4°C, 217.7 atm
-56.4°C, 5.11 atm
0.0098°C, 4.58 torr
- Quartz is
LiO2
SiO2
N2O
S2O3
SiO2
- He coined the word “polymer” to denote molecular substances of high molecular mass formed by the polymerization (joining together) of monomers, molecules with low molecular mass.
Arthur Little
Antoine Lavoiser
Jons Jakob Berzelius
John Dalton
Jons Jakob Berzelius
- A substance that can accept a proton or a proton acceptor.
Arrhenius acid
Arrhenius base
Bronsted acid
Bronsted base
Bronsted base
- If two solutions of identical osmotic pressure are separated by a semipermeable membrane, no osmosis will occur. The two solutions are said to be ____.
saturated
isobaric
polytropic
isotonic
isotonic
- A hydrocarbon derivative in which one or more hydrogen of a parent hydrocarbon have been replaced by a hydroxyl functional group, OH.
carboxylic acid
esters
alcohols
ethers
alcohols
- It is a product of the fermentation of carbohydrates such as sugar and starch.
methanol
ethanol
dimethyl ether
ethanoic acid
ethanol
- Compounds in which two hydrocarbon groups are bonded to one oxygen are called
ethers
esters
phenols
amines
ethers
- Which of the following has no carbonyl group?
aldehydes
ketones
carboxylic acids
ethers
ethers
- It is the scattering of light by colloidal particles.
Brownian movement
Tyndall effect
Corioles effect
Messner effect
Tyndall effect
- A type of colloid in which a liquid is dispersed in a liquid, example, milk.
foam
emulsion
sol
aerosol
emulsion
- A type of colloid in which a liquid/solid is dispersed in a gas, example, fog, smoke.
aerosol
foam
emulsion
sol
aerosol
- A type of colloid in which a gas is dispersed in a liquid, example, whipped cream.
aerosol
foam
emulsio
sol
foam
- It refers to adherence to a surface.
adsorption
absorption
desorption
osmosis
adsorption
- Baking soda is
Na2CO3
CaCO3
Na2CO310H2O
NaHCO3
NaHCO3
- It consist of O-Si-O chains in which the remaining bonding positions on each silicon are occupied by organic groups as CH3.
Boranes
Silicones
Sulfide
Nitrides
Silicones
- Which of the following is an aluminum ore?
sphalerite
amalgam
galena
bauxite
bauxite
- Which of the following radioisotopes is used in treating cancer?
cobalt-60
uranium-233
helium-4
uranium-238
cobalt-60
- Which of the following indicators is yellow in acidic solution and blue in basic solution?
HpH
thymol blue
bromthymol blue
methyl orange
bromthymol blue
- A substance that is capable of acting as either an acid or a base.
buffer
amphoteric
lewis acid
lewis base
amphoteric
- A substance (molecule or ion) that can transfer a proton to another substance.
Arrhenius acid
Arrhenius base
Bronsted acid
Bronsted base
Bronsted acid
- Elements
can be decomposed by chemical means
cannot be decomposed by chemical means
contain two or more atoms chemically combined
commingle two or more substances
cannot be decomposed by chemical means
- Which of the following is NOT true of solids?
true solids have a crystalline structure
they take the shape of the container
the particle vibrate
they have a definite volume
they take the shape of the container