question

silicon

answer

Example of an element:

question

0.00001

answer

what is the expanded form of 1X 10^-5

question

10^-9 M

answer

nanotechnology is the development of tiny devices in the range of

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amorphous

answer

pure solids composed of discolored atomic substances

question

liquids

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emulsions are colloids in which both components are

question

solution

answer

another term for a homogeneous mixture

question

tin

answer

substance added to iron as a component of steel

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18K

answer

if a ring is 75% gold by mass, the ring would be labeled as:

question

ratio of mass to volume

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density of a material is

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density is less than water

answer

ice floats on water becasue

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physical process

answer

the dissolving of sugar crystals in water to produce a solution is a

question

evaporates

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person detects the odor of perfume because it

question

gasoline

answer

which is the most volatile?

question

Mt. Everest

answer

which place on earth would the boiling point of water be the lowest?

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water and carbon dioxide

answer

the products of a burning candle are:

question

number and type of atoms are equal on both sides and sum of charges are identical

answer

What is a true statement for equal chemical equations

question

incomplete combustion

answer

the main cause of measurable amounts of CO from automobile engines

question

nitrogen

answer

important element that is the focus of fertilizers production

question

electrostatic forces

answer

electrons are held within the volume of an atom by:

question

8

answer

what number of electrons in the last shell is required to have a stable atom that is unreactive

question

C_mH_m+2

answer

alkanes have the general formula:

question

n

answer

which letter before an alkane designates a straight chain hydrocarbon?

question

oxygen+helium

answer

what two gases, when mixed, helps to prevent a deep sea diver from experiencing "the bends"?

question

six electrons in the last shell

answer

what makes a true Group VI element?

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bonds and nonbonding electrons

answer

lewis structures are diagrams that represent

question

electronegativity

answer

the relative ability of an atam to attract electrons in bonds to itself

question

sodium

answer

which metal ion is linked to high blood pressure?

question

LPG

answer

which fuel has the greatest caloric output per volume of gas?

question

C_mH_2m

answer

alkenes have the general formula

question

120 degrees

answer

all the bond angles of ethene are:

question

is carcinogenic

answer

benzene is harmful to human beings because it

question

homogeneous mixture

answer

gasoline used in motor vehicles is

question

branched alkanes

answer

fuels that contain the following have the best burning characteristics

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greater the fewer carbons in the compound

answer

in general, the vapor pressure of an alkane hydrocarbon is

question

benzene

answer

example of an aromatic molecule:

question

carbon, chlorine, and fluorine

answer

CFCs are compounds of

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fire extinguishers

answer

halon is banned in developed countries and was used as

question

plastic

answer

a material that an be molded

question

HDPE

answer

polymer used in plastic milk containers

question

thermoplastic

answer

plastic that when heated softens but does not compose

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monomer

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small molecule that successively combines to form parts of a long chain

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6

answer

polystyrene's recycle number

question

neither perspiration nor water drops can pass through the material

answer

gore-tex clothing is effective because

question

alternating single and double bonds

answer

polymers which conduct electricity have this molecular structure

question

vulcanization

answer

adding molten sulfur to rubber helps to retain its resilence

question

HDPE and LDPE

answer

most commonly recycled polymer

question

graphite

answer

an allotrope of diamond

question

methane

answer

PAHs in the form of Benzo[a] pyrene, a human carcinogen, is produced from incomplete combustion of:

question

lubricant

answer

because of its structure, graphite makes an excellent

question

C-O-C

answer

Ethers are organic compounds that have the general structure:

question

ethyl alcohol

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C₂H₅OH is called

question

diabetes

answer

what is not a detrimental effect of drinking too much alcohol?

question

equal to twice the % of alcohol

answer

proof value of drinking alcohol is

question

hydrophillic

answer

the -OH portion of an alcohol molecule is

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sweet

answer

alcohols with a multiple -OH group can be identified as

question

acetone

answer

simplest of all ketones

question

vinegar

answer

diluted form of acetic acid

question

aldehyde

answer

what causes a hangover

question

lactic, malic, and tararic

answer

examples of alpha hydroxy acid

question

latex

answer

dispersion of water soluble chemical constituents in natural rubber

question

geosmin

answer

responsible for the earthy aroma of freshly dug soil

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vitamin D

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poor absorption of calcium results from low levels of

question

fructose

answer

sweetest of all monosacchrides

question

glucose

answer

insulin assists in the metabolism of

question

rum

answer

molasses is used in cooking and production of

question

6 C atoms and 6 -OH atoms

answer

what structure gives "sugarless" gum its sweetness

question

absence of specific enzymes for hydrolysis

answer

difficulty of digesting lactose is caused by

question

putting it in the refrigerator

answer

bread can become stale by

question

unbranched glucose polymers

answer

cellulose is

question

fats

answer

what has the highest energy content per gram

question

carboxylic acid

answer

general formula RCOOH represents

question

at least on double bond

answer

Fatty acids that are unsaturated

question

oils

answer

fats that are liquids at room temperature are called

question

unpleasant odor

answer

one of the most obvious characteristics of amines

question

pyridine

answer

a benzyne ring with a nitrogen atom substituting for one carbon

question

nucleotides

answer

subunits of DNA and RNA

question

guanine

answer

this is a purine

question

hydrogen bonding

answer

formation of the double helix 2 structure of DNA is due to

question

sugar

answer

the D in DNA is

question

chain of amino acids

answer

polypeptides are

question

peptide bond

answer

bond between amino acids in proteins

question

composed and the nitrogen is excreted in urine

answer

any excess amino acids not required for protein synthesis are

question

glutamic acid

answer

amino acid which is the source of umami

question

mRNA

answer

serves as the template for protein synthesis in the extranulear region of a living cell

question

tRNA

answer

carries single amino acids to the ribosome during protein synthesis

question

phenylalanine to tyrosine

answer

in PKU disease, an enzymme is lacking which converts

question

D enantiomer

answer

biologically important to monosaccharides

question

pork

answer

richest source of thiamine

question

B1

answer

thiamine is what vitamin?

question

riboflavin

answer

vitamin B2

question

C

answer

What vitamin is water soluble?

question

K

answer

vitamin helps in blood clotting

question

C

answer

vitamin deficiency that can cause scurvy

question

E

answer

vitamin that is an antioxident

question

benzoic acid

answer

additive to preserve food

question

they have a very low LD50

answer

PCBs are very common industrial organochlorine chemicals and have been a problem in our environment because _______

question

it has a high LD50

answer

An important organophosphate insecticide is “malathion” because _______

question

incinerators

answer

Currently, which is the greatest source of anthropogenic dioxins in the environment?

question

aldicarb

answer

Which of the following is most toxic to human beings?

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