A mystical substance supposedly released during combustion was called: w) thermal flax x) ether y) caloric z) phlogiston (pron: flow-gis-ton)

A mystical substance supposedly released during combustion was called: w) thermal flax x) ether y) caloric z) phlogiston (pron: flow-gis-ton)
by

1 Answer

Answer :

ANSWER: Z -- PHLOGISTON
by

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The most efficient heat engine that can operate between two temperature reservoirs T1 and T2 is: w) jet engine x) internal combustion engine y) Carnot engine (pron: car-no) z) steam engine

Description : The most efficient heat engine that can operate between two temperature reservoirs T1 and T2 is: w) jet engine x) internal combustion engine y) Carnot engine (pron: car-no) z) steam engine

Last Answer : ANSWER: Y -- CARNOT ENGINE

Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Description : Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Last Answer : ANSWER: X -- GANGUE

An alcohol is related to an ester as a hydroxide compound is related to: w) an acid x) a ketone y) an ether z) a salt

Description : An alcohol is related to an ester as a hydroxide compound is related to: w) an acid x) a ketone y) an ether z) a salt

Last Answer : ANSWER: Z -- A SALT

Which of the following is NOT an organic acid? w) butyric (pron: byu-TEER-ik) x) sulfuric y) acetic z) citric

Description : Which of the following is NOT an organic acid? w) butyric (pron: byu-TEER-ik) x) sulfuric y) acetic z) citric

Last Answer : ANSWER: X -- SULFURIC

Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

Description : Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE 

What is the molecular geometry of thiocyanate (pron: thie-owe-SIE-a-nate) ion (SCN minus 1)? w) linear x) angular y) tetrahedral z) pyramidal

Description : What is the molecular geometry of thiocyanate (pron: thie-owe-SIE-a-nate) ion (SCN minus 1)? w) linear x) angular y) tetrahedral z) pyramidal

Last Answer : ANSWER: W -- LINEAR

A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Description : A family of organic compounds containing only carb and hydrogen and having only single bonds are the: w) alkenes and alkanes x) alkanes and cycloalkanes y) alkynes (pron: AL-kines) and alkenes z) cycloalkanes and alkenes

Last Answer : ANSWER: B -- ALKANES AND CYCLOALKANES

What is the primary CONSTITUENT of human bones? w) Calcium sulfate x) Calcium carbonate y) Hydroxyapatite (pron: high-drox-ee-ap-eh-tite) z) Chloroapatite (pron: klor-o-ap-eh-tite)

Description : What is the primary CONSTITUENT of human bones? w) Calcium sulfate x) Calcium carbonate y) Hydroxyapatite (pron: high-drox-ee-ap-eh-tite) z) Chloroapatite (pron: klor-o-ap-eh-tite)

Last Answer : ANSWER: Y -- HYDROXYAPATITE 

In what category may LIPASE (pron: lie-pase) be placed w) carbohydrates x) lipids y) enzymes z) nucleic acids

Description : In what category may LIPASE (pron: lie-pase) be placed w) carbohydrates x) lipids y) enzymes z) nucleic acids

Last Answer : ANSWER: C--ENZYMES

Which of the following group of compounds is most soluble in water? w) alkanes (pron: ak-KANES) x) alcohols y) aldehydes (pron: al-deh-HIDES) z) alkenes (pron: al-KEENS)

Description : Which of the following group of compounds is most soluble in water? w) alkanes (pron: ak-KANES) x) alcohols y) aldehydes (pron: al-deh-HIDES) z) alkenes (pron: al-KEENS)

Last Answer : ANSWER: X -- ALCOHOLS

Moth balls contain: w) formalin x) chitin (pron: kite-en) y) formaldehyde z) naphthalene

Description : Moth balls contain: w) formalin x) chitin (pron: kite-en) y) formaldehyde z) naphthalene

Last Answer : ANSWER: Z -- NAPHTHALENE

Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Description : Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Last Answer : ANSWER: X -- HEMATITE

The loss of water of crystallization from a hydrat when exposed to air is termed: w) efflorescence (pron: eh-floor-es-ence) x) deliquescence (pron: del-i-kwes-ence) y) quiescence (pron: kwi-es-ence) z) anhydrogenation

Description : The loss of water of crystallization from a hydrat when exposed to air is termed: w) efflorescence (pron: eh-floor-es-ence) x) deliquescence (pron: del-i-kwes-ence) y) quiescence (pron: kwi-es-ence) z) anhydrogenation

Last Answer : ANSWER: W -- EFFLORESCENCE

Ferrous is an equivalent name for which of the following? w) Iron (IV) (pron: iron-4) x) Iron (III) (pron: iron-3) y) Iron (II) (pron: iron-2) z) Iron (I) (pron: iron-1)

Description : Ferrous is an equivalent name for which of the following? w) Iron (IV) (pron: iron-4) x) Iron (III) (pron: iron-3) y) Iron (II) (pron: iron-2) z) Iron (I) (pron: iron-1)

Last Answer : ANSWER: Y -- IRON (II)

Azo (pron: A-zo) Compounds characteristically are compounds containing the group: w) C2 x) N2 y) O2 z) Cl2

Description : Azo (pron: A-zo) Compounds characteristically are compounds containing the group: w) C2 x) N2 y) O2 z) Cl2

Last Answer : ANSWER: X -- N2 (N = N)

The triple bond between the carbon atoms causes acetylene, C2H2, to have which of the following shapes? w) trigonal planar (pron: try-gon-al) x) linear y) tetrahedral z) trigonal bipyramidal

Description : The triple bond between the carbon atoms causes acetylene, C2H2, to have which of the following shapes? w) trigonal planar (pron: try-gon-al) x) linear y) tetrahedral z) trigonal bipyramidal

Last Answer : ANSWER: X -- LINEAR

Which one of the following is NOT a vitamin? w) ascorbic acid x) niacin (pron: nI-eh-sen) y) trypsin (pron: trip-sen) z) riboflavin (pron: rye-bow-fla-vin)

Description : Which one of the following is NOT a vitamin? w) ascorbic acid x) niacin (pron: nI-eh-sen) y) trypsin (pron: trip-sen) z) riboflavin (pron: rye-bow-fla-vin)

Last Answer : ANSWER: Y -- TRYPSIN

Which of the following refers to the scattering of light by colloidal particles? w) Rutherford effect x) Tyndall effect (pron: tin-dahl) y) Thompson effect z) none of these

Description : Which of the following refers to the scattering of light by colloidal particles? w) Rutherford effect x) Tyndall effect (pron: tin-dahl) y) Thompson effect z) none of these

Last Answer : ANSWER: X -- TYNDALL EFFECT

Deposits that form when the ice in a glacier melts are called: w) drifts x) dunes y) veins z) cirques (pron: serks)

Description : Deposits that form when the ice in a glacier melts are called: w) drifts x) dunes y) veins z) cirques (pron: serks)

Last Answer : ANSWER: W -- DRIFTS

An open-ocean community is also called a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thik) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Description : An open-ocean community is also called a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thik) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Last Answer : ANSWER: W -- PELAGIC COMMUNITY

One of the potential health effects of exposure to high levels of noise is called tinnitus (pron: ti - NI - tes), which means: w) a permanent loss of hearing. x) a persistent ringing or hissing in the ears after exposure. y) a temporary loss of hearing, especially of upper frequencies. z) abdominal discomfort from low frequency noise.

Description : One of the potential health effects of exposure to high levels of noise is called tinnitus (pron: ti - NI - tes), which means: w) a permanent loss of hearing. x) a persistent ringing ... ) a temporary loss of hearing, especially of upper frequencies. z) abdominal discomfort from low frequency noise.

Last Answer : ANSWER: X -- A PERSISTENT RINGING OR HISSING IN THE EARS AFTER EXPOSURE.

A device used to measure the amount of moisture in the atmosphere is called a: w) hydrometer (pron: high-dro-me-ter) x) hygrometer (pron: high-gro-me-ter) y) anemometer z) barometer

Description : A device used to measure the amount of moisture in the atmosphere is called a: w) hydrometer (pron: high-dro-me-ter) x) hygrometer (pron: high-gro-me-ter) y) anemometer z) barometer

Last Answer : ANSWER: X -- HYGROMETER

The study of poisons is called: w) oncology x) toxicology y) phrenology z) ergonomics (pron: ur - go - no - mics)

Description : The study of poisons is called: w) oncology x) toxicology y) phrenology z) ergonomics (pron: ur - go - no - mics)

Last Answer : ANSWER: X -- TOXICOLOGY

The Michelson interferometer was designed to study the nature of: w) water waves x) sound waves y) an "ether" z) sunlight

Description : The Michelson interferometer was designed to study the nature of: w) water waves x) sound waves y) an "ether" z) sunlight

Last Answer : ANSWER: Y -- AN "ETHER"

Thermal insulation is used to: w) stop the flow of heat. x) reduce the flow of heat. y) absorb heat. z) reverse the heat flow direction.

Description : Thermal insulation is used to: w) stop the flow of heat. x) reduce the flow of heat. y) absorb heat. z) reverse the heat flow direction.

Last Answer : ANSWER: X -- REDUCE THE FLOW OF HEAT. 

A piano tuner notices a standing Lissajous (pron: Liss-a-jew) curve on his oscilloscope. The tone being projected is: w) out of harmony x) sharp y) resonating z) flat

Description : A piano tuner notices a standing Lissajous (pron: Liss-a-jew) curve on his oscilloscope. The tone being projected is: w) out of harmony x) sharp y) resonating z) flat

Last Answer : ANSWER: Y -- RESONATING

Which of the following is NOT closely associated with a non-magnetic Phase Diagram? w) Eutectic Temperature (pron: you-tek-tik) x) Curie Point y) Solidus z) Liquidus Curves

Description : Which of the following is NOT closely associated with a non-magnetic Phase Diagram? w) Eutectic Temperature (pron: you-tek-tik) x) Curie Point y) Solidus z) Liquidus Curves

Last Answer : ANSWER: X -- CURIE POINT

Which of the following is NOT a noble gas? w) radon x) xenon (pron: zee-non) y) astatine (pron: as-tah-teen) z) krypton

Description : Which of the following is NOT a noble gas? w) radon x) xenon (pron: zee-non) y) astatine (pron: as-tah-teen) z) krypton

Last Answer : ANSWER: Y -- ASTATINE

What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Description : What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Last Answer : ANSWER: X -- COULOMB'S LAW

Large streams that enter a standing body of water produce which of the following geological features at their mouths? w) deltas x) load casts y) anticlines z) sync (pron: sink)

Description : Large streams that enter a standing body of water produce which of the following geological features at their mouths? w) deltas x) load casts y) anticlines z) sync (pron: sink)

Last Answer : ANSWER: W -- DELTAS

Cordaites (pron: kor-day-i-tees) were the ancestor of one of the following. Were they primitive: w) amphibians x) cone-bearing trees y) snakes z) sharks

Description : Cordaites (pron: kor-day-i-tees) were the ancestor of one of the following. Were they primitive: w) amphibians x) cone-bearing trees y) snakes z) sharks

Last Answer : ANSWER: X -- CONE-BEARING TREES 

Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic

Description : Which of the following is the oldest period of tim lasting from the beginnings of the earth to approximately 570 million year ago? w) Precambrian x) Pleistocene (pron: ply-sto-sin) y) Miocene (pron: my-o-sin) z) Jurassic

Last Answer : ANSWER: W -- PRECAMBRIAN

An igneous rock which is commonly black, has a glassy texture, and has a conchoidal (pron: kong-koid-al) fracture is whic of the following? w) pelite (pron: pel-ite) x) calcite y) obsidian z) none of the above

Description : An igneous rock which is commonly black, has a glassy texture, and has a conchoidal (pron: kong-koid-al) fracture is whic of the following? w) pelite (pron: pel-ite) x) calcite y) obsidian z) none of the above

Last Answer : ANSWER: Y -- OBSIDIAN

Pedocal (pron: ped-eh-kal) soils are usually found to have developed in: w) forests x) swamps y) grasslands z) jungles

Description : Pedocal (pron: ped-eh-kal) soils are usually found to have developed in: w) forests x) swamps y) grasslands z) jungles

Last Answer : ANSWER: Y -- GRASSLANDS

On a topographic map, lines that indicate water depth are termed: w) isogonic lines (pron: eye-seh-gone-ik) x) bathymetric lines (pron: bath-i-meh-trik) y) isopachs z) none of these

Description : On a topographic map, lines that indicate water depth are termed: w) isogonic lines (pron: eye-seh-gone-ik) x) bathymetric lines (pron: bath-i-meh-trik) y) isopachs z) none of these

Last Answer : ANSWER: X -- BATHYMETRIC LINES 

The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Description : The disappearance of the dinosaurs also marks the end of which geological era? w) Precambrian x) Cambrian y) Mesozoic (pron: mez-ah-zo-ik) z) Cenozoic (pron: see-nah-zo-ik)

Last Answer : ANSWER: Y -- MESOZOIC

The Miocene, Eocene and Paleocene epoches belong t what geologic period on the Phanerozoic Time Scale? Is it the: w) Devonian x) Permian y) Triassic (pron: try-as-ick) z) Tertiary

Description : The Miocene, Eocene and Paleocene epoches belong t what geologic period on the Phanerozoic Time Scale? Is it the: w) Devonian x) Permian y) Triassic (pron: try-as-ick) z) Tertiary

Last Answer : ANSWER: Z -- TERTIARY 

On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) time scale, which of the following geologic periods occurred approximately 500 to 570 million years ago? Is it: w) Cambrian x) Ordovician (pron: ord-eh-vish-en) y) Carboniferous z) Silurian

Last Answer : ANSWER: W -- CAMBRIAN

On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-row-zo-ick) Time Scale, which of the following geologic periods occurred approximately 395 to 430 million years ago? Is it: w) Jurassic (pron: ju-ras-ick) x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: Z -- SILURIAN

On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Description : On the Phanerozoic (pron: fan-eh-reh-zO-ik) Time Scale, which of the following geologic periods occurred approximately 225 to 280 million years ago? Is it: w) Jurassic x) Permian y) Carboniferous z) Silurian

Last Answer : ANSWER: X -- PERMIAN

Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Y -- MALACHITE

Apatite is what number on Moh's (pron: moes: rhyme with toes) hardness scale? w) 1 x) 3 y) 5 z) 7

Description : Apatite is what number on Moh's (pron: moes: rhyme with toes) hardness scale? w) 1 x) 3 y) 5 z) 7

Last Answer : ANSWER: Y -- 5

A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Description : A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Last Answer : ANSWER: Y -- LENTIC COMMUNITY

Igneous rocks that form from magma are known as: w) minerals x) granite y) intrusive rocks z) gneiss (pron: nice)

Description : Igneous rocks that form from magma are known as: w) minerals x) granite y) intrusive rocks z) gneiss (pron: nice)

Last Answer : ANSWER: Y -- INTRUSIVE ROCKS

Which of the following minerals is NOT a silicate? w) orthoclase x) muscovite y) augite (pron: aw-jIt) z) magnetite

Description : Which of the following minerals is NOT a silicate? w) orthoclase x) muscovite y) augite (pron: aw-jIt) z) magnetite

Last Answer : ANSWER: Z -- MAGNETITE

Fine parallel lines, or striations, are most likel to be seen on a cleavage surface of which of the following minerals? w) quartz x) orthoclase y) hornblende z) plagioclase (pron: play-gee-o-klase)

Description : Fine parallel lines, or striations, are most likel to be seen on a cleavage surface of which of the following minerals? w) quartz x) orthoclase y) hornblende z) plagioclase (pron: play-gee-o-klase)

Last Answer : ANSWER: Z -- PLAGIOCLASE

In geological studies, arkose contains which of th following minerals which gives it a reddish color? w) orthoclase x) calcite y) aragonite (pron: a-rag-o-nite) z) quartz

Description : In geological studies, arkose contains which of th following minerals which gives it a reddish color? w) orthoclase x) calcite y) aragonite (pron: a-rag-o-nite) z) quartz

Last Answer : ANSWER: W -- ORTHOCLASE

Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

Description : Which of the following terms is used to describe the appearance of a mineral in transmitted light? Is it: w) diaphaneity (pron: die-ah-fah-na-ah-tee) x) translucence y) opaqueness z) porosity

Last Answer : ANSWER: W -- DIAPHANEITY 

The per capita birth rate of a population is known as its: w) mortality x) natality (pron: nay-tal-eh-ty) y) population density z) carrying capacity

Description : The per capita birth rate of a population is known as its: w) mortality x) natality (pron: nay-tal-eh-ty) y) population density z) carrying capacity

Last Answer : ANSWER: X -- NATALITY

Fatty acids are a major energy source for the body. Which of the following statement(s) is/are true concerning the use of fatty acids as an energy source? a. Fatty acids are stored in adipocytes as triglycerides b. Hormone-sensitive lipase is present only in adipose tissue c. Fatty acids are released into the circulation traveling freely in plasma d. Approximately 25% of total nonprotein caloric needs supplied via total parenteral nutrition should be in the form of fat

Description : Fatty acids are a major energy source for the body. Which of the following statement(s) is/are true concerning the use of fatty acids as an energy source? a. Fatty acids are stored in ... 25% of total nonprotein caloric needs supplied via total parenteral nutrition should be in the form of fat

Last Answer : Answer: a, b, d In most tissues, fatty acids are readily oxidized for energy. They are especially important energy sources for the heart, liver and skeletal muscle. In ... administered to patients receiving total parenteral nutrition should comprise about 5-30% of total nonprotein caloric needs