5649059
Descripción
Test por Rachel Nall, actualizado hace más de 1 año
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Creado por Rachel Nall
hace alrededor de 8 años
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Pregunta 1
Pregunta
Which of the following is the definition of a gas?
Respuesta
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A substance that possesses volume and assumes the shape of its container.
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A substance that possesses neither a volume or shape, but expands indefinitely.
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A substance that has volume and shape that cannot be compressed.
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A mixture of ionized gas and free-floating electrons.
Pregunta 2
Pregunta
Which of the following is an example of a solid?
Respuesta
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Water
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Steam
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Ice cube
Pregunta 3
Pregunta
Which of the following doesn't describes a change in water's physical properties?
Respuesta
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adding heat to an ice cube to cause it to melt
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adding pressure to cause water to become a gas
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breaking the bonds of h20 into hydrogen and oxygen
Pregunta 4
Pregunta
The identity of an atom is determined by [blank_start]what?[blank_end]
Respuesta
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atomic number
Pregunta 5
Pregunta
Which of the following is the definition of an element?
Respuesta
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A basic building block of matter
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A substance composed of two or more elements.
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A material made up of two or more different substances which are mixed, but are not combined chemically.
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A pure substance that cannot be broken down into similar substances by chemical reactions.
Pregunta 6
Pregunta
Which of the following is NOT a portion of Dalton's Atomic Theory?
Respuesta
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All matter is made up of tiny particles called atoms.
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All atoms of the same element are not identical to each other.
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Atoms of any one element are different from those of another element.
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Atoms combine to form molecules.
Pregunta 7
Pregunta
A compound is formed by bonding atoms together in a [blank_start]fixed ratio[blank_end].
Respuesta
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fixed ratio
Pregunta 8
Pregunta
Which of the following is an example of a mixture?
Respuesta
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h20 (water)
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NaCL
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Fluoride
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Blood
Pregunta 9
Pregunta
A [blank_start]molecule[blank_end] is a tightly bound group of atoms that act as a unit and is connected by a chemical bond.
Respuesta
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molecule
Pregunta 10
Pregunta
Rows in the periodic table are called [blank_start]periods[blank_end]. They increase with [blank_start]atomic weight[blank_end]. Columns are called [blank_start]families[blank_end].
Respuesta
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periods
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atomic weight
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families
Pregunta 11
Pregunta
What is the definition of an atomic number?
Respuesta
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The number of protons in the nucleus.
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The sum of the number of protons and neutrons.
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The electrical charge of the atom.
Pregunta 12
Pregunta
[blank_start]Protons[blank_end] have a positive charge and are in the nucleus. Neutrons have no charge and are in the nucleus. Both protons and neutrons have equal mass. Electrons have a negative charge. Their mass is 1/1800 of the nucleus.
Respuesta
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Protons
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Neutrons
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Electrons
Pregunta 13
Pregunta
How many electrons are in the 2nd orbit of an electron?
Respuesta
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2
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8
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16
Pregunta 14
Pregunta
Which of the following is NOT an example of the "big four" elements needed for human life?
Respuesta
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Carbon
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Hydrogen
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Calcium
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Oxygen
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Nitrogen
Pregunta 15
Pregunta
Which element is responsible for regulating neutrality of body fluids and in energy transfer?
Respuesta
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Calcium
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Phosphorus
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Potassium
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Sulfur
Pregunta 16
Pregunta
About 90 percent of [blank_start]calcium[blank_end] in the body is present in bones as phosphates and carbonates.
Respuesta
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calcium
Pregunta 17
Pregunta
Which of the following elements is NOT responsible for helping to regulate electrical balance of body fluids?
Respuesta
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Potassium
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Magnesium
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Chlorine
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Sodium
Pregunta 18
Pregunta
A [blank_start]cation[blank_end] is an atom that loses one or more electrons, giving it a positive charge.
Respuesta
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cation
Pregunta 19
Pregunta
Compounds composed of [blank_start]non-metals[blank_end] tend to be molecular.
Respuesta
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non-metals
Pregunta 20
Pregunta
Which of the following is the strongest of the electrostatic bonds?
Respuesta
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Ionic
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Dipole-Dipole
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Hydrogen
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London
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Covalent
Pregunta 21
Pregunta
In ionic bonding, non-metals tend to readily accept metals. [blank_start]Non-metals[blank_end] usually have 5, 6, or 7 outer electrons. [blank_start]Metals[blank_end] usually have 1, 2, or 3 electrons.
Respuesta
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Metals
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Non-metals
Pregunta 22
Pregunta
Which of the following are examples of ionic bonds?
Respuesta
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NaCL (sodium chloride)
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MgO (magnesium oxide)
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CaCL2 (calcium chloride)
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All of the above
Pregunta 23
Pregunta
What are dipole-dipole attractions?
Respuesta
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The attraction between positive and negative ions.
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A bond that's only possible when a hydrogen atom is directly bonded to F, O, or N
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The attraction between the opposite (partial) charges of polar molecules.
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An instantaneous dipole that is created whenever electrons in a molecule are unevenly distributed.
Pregunta 24
Pregunta
An [blank_start]ion-dipole[blank_end] bonding is a structural arrangement in which a molecule "appears" to have a more positive side or more negative side.
Respuesta
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ion-dipole
Pregunta 25
Pregunta
This image is an example of what kind of bond?
Respuesta
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Ion-dipole
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Dipole-Dipole
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London forces
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Hydrogen bonding
Pregunta 26
Pregunta
[blank_start]Hydrogen bonding[blank_end] holds the water molecules in the liquid state and prevents the water in our bodies from exploding away into the gas state.
Respuesta
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Hydrogen bonding
Pregunta 27
Pregunta
Which of the following is the weakest of the intermolecular forces?
Respuesta
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Covalent
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Hydrogen
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London
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Dipole-dipole
Pregunta 28
Pregunta
Under the Octet Rule, all atoms want to be [blank_start]noble[blank_end] gases.
Respuesta
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noble
Pregunta 29
Pregunta
The [blank_start]covalent[blank_end] bond forms the foundation for organic chemistry.
Respuesta
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covalent
Pregunta 30
Pregunta
Compounds made up of mainly one or more carbon atoms with their respective hydrogen attachments are called [blank_start]hydrocarbons[blank_end].
Respuesta
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hydrocarbons
Pregunta 31
Pregunta
This image is an example of which gas?
Respuesta
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Ethane
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Alkane
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Alkenes
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Methane
Pregunta 32
Pregunta
CH3 is an example of a _________ group.
Respuesta
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Methyl
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Alkane
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Carbonized
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Ethane
Pregunta 33
Pregunta
This image is an example of what common hydrocarbon?
Respuesta
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Methane
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Ethane
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Butane
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Pentane
Pregunta 34
Pregunta
Name the following hydrocarbon configurations:
3 atoms = [blank_start]Propane[blank_end]
4 atoms = [blank_start]Butane[blank_end]
5 atoms = [blank_start]Pentane[blank_end]
6 atoms = [blank_start]Hexane[blank_end]
7 atoms = [blank_start]Heptane[blank_end]
8 atoms = [blank_start]Octane[blank_end]
9 atoms = [blank_start]Nonane[blank_end]
10 atoms = [blank_start]Decane[blank_end]
Respuesta
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Propane
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Butane
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Pentane
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Hexane
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Heptane
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Octane
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Nonane
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Decane
Pregunta 35
Pregunta
This image is an example of what molecule?
Respuesta
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Pentane
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Decane
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Halothane
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Isoflurane
Pregunta 36
Pregunta
Hydrocarbons with a double bond are called [blank_start]alkenes[blank_end]. Hydrocarbons with a triple bond are called [blank_start]alkynes[blank_end].
Respuesta
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alkenes
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alkynes
Pregunta 37
Pregunta
What are compounds with identical molecular formulas, but several alternate structures?
Respuesta
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Isotonic
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Isomer
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Alkane
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Methyl group
Pregunta 38
Pregunta
There are two types of isomers: [blank_start]structural[blank_end] isomers and [blank_start]stereoisomers[blank_end].
Respuesta
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structural
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stereoisomers
Pregunta 39
Pregunta
Optical isomers that bend light to the right are called what?
Respuesta
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Dextroisomers
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Levoisomers
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Structural isomers
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Beta isomers
Pregunta 40
Pregunta
Optical isomers that bend light to the left are called what?
Respuesta
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Dextroisomers
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Levoisomers
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Structural isomers
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Beta isomers
Pregunta 41
Pregunta
When there is a mixture of both dextro- and levoisomers such that no bending of light occurs, the mixture is called [blank_start]racemic[blank_end].
Respuesta
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racemic
Pregunta 42
Pregunta
Enflurane and what gas are trifluoroethyl difluoromethyl ethers? They have the same chemical formula and atomic weight, but different structure and physical characteristics.
Respuesta
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Isoflurane
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Sevoflorane
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Halothane
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Ethane
Pregunta 43
Pregunta
What is a set of atoms bonded together in a specific way, which largely defines the chemical and physical properties of a compound?
Respuesta
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Functional group
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Methyl group
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Alkane group
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Compound
Pregunta 44
Pregunta
Organic molecules have 2 parts: a [blank_start]carbon[blank_end] backbone and one or more [blank_start]functional[blank_end] groups.
Respuesta
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carbon
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functional
Pregunta 45
Pregunta
Ethers are composed of two radical groups joined by an atom of what?
Respuesta
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Oxygen
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Carbon
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Hydrogen
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Nitrogen
Pregunta 46
Pregunta
Which of the following is NOT a member of the halogen group?
Respuesta
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Fluorine
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Chlorine
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Bromine
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Iodine
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Xenon
Pregunta 47
Pregunta
A halogenated ether has an [blank_start]oxygen[blank_end] atom to make it more stable.
Respuesta
-
oxygen
Pregunta 48
Pregunta
R-COO-R is the formula for what compounds?
Respuesta
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Ethers
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Esters
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Amides
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Amines
Pregunta 49
Pregunta
This image is an example of what organic compound?
Respuesta
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Ester
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Amide
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Amine
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Ether
Pregunta 50
Respuesta
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Ester
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Amide
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Amine
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Ether
Pregunta 51
Pregunta
The generic formula -CONH2 is the formula for what?
Respuesta
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Ethers
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Esters
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Amides
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Amines
Pregunta 52
Pregunta
The generic formula for what group is R-NH2 ?
Respuesta
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Amides
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Amines
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Ethers
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Esters
Pregunta 53
Pregunta
This image is an example of what group?
Respuesta
-
Amines
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Amides
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Esters
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Ethers
Pregunta 54
Pregunta
Epinephrine, norepinephrine, dopamine, phenylephrine, and dobutamine are all examples of [blank_start]amines[blank_end].
Respuesta
-
amines
Pregunta 55
Respuesta
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Amine ring
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Benzene ring
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Ether ring
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Ester ring
Pregunta 56
Pregunta
Where is the methyl substitution and what is this molecule?
Respuesta
-
Methyl substitution
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Epinephrine molecule
Pregunta 57
Respuesta
-
Dopamine
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Norepinephrine
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Epinephrine
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Dobutamine
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