IHS Test 1 - Chemistry Questions

Descrição

Quiz sobre IHS Test 1 - Chemistry Questions, criado por Rachel Nall em 03-06-2016.
Rachel Nall
Quiz por Rachel Nall, atualizado more than 1 year ago
Rachel Nall
Criado por Rachel Nall aproximadamente 8 anos atrás
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7

Resumo de Recurso

Questão 1

Questão
Which of the following is the definition of a gas?
Responda
  • A substance that possesses volume and assumes the shape of its container.
  • A substance that possesses neither a volume or shape, but expands indefinitely.
  • A substance that has volume and shape that cannot be compressed.
  • A mixture of ionized gas and free-floating electrons.

Questão 2

Questão
Which of the following is an example of a solid?
Responda
  • Water
  • Steam
  • Ice cube

Questão 3

Questão
Which of the following doesn't describes a change in water's physical properties?
Responda
  • adding heat to an ice cube to cause it to melt
  • adding pressure to cause water to become a gas
  • breaking the bonds of h20 into hydrogen and oxygen

Questão 4

Questão
The identity of an atom is determined by [blank_start]what?[blank_end]
Responda
  • atomic number

Questão 5

Questão
Which of the following is the definition of an element?
Responda
  • A basic building block of matter
  • A substance composed of two or more elements.
  • A material made up of two or more different substances which are mixed, but are not combined chemically.
  • A pure substance that cannot be broken down into similar substances by chemical reactions.

Questão 6

Questão
Which of the following is NOT a portion of Dalton's Atomic Theory?
Responda
  • All matter is made up of tiny particles called atoms.
  • All atoms of the same element are not identical to each other.
  • Atoms of any one element are different from those of another element.
  • Atoms combine to form molecules.

Questão 7

Questão
A compound is formed by bonding atoms together in a [blank_start]fixed ratio[blank_end].
Responda
  • fixed ratio

Questão 8

Questão
Which of the following is an example of a mixture?
Responda
  • h20 (water)
  • NaCL
  • Fluoride
  • Blood

Questão 9

Questão
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.
Responda
  • molecule

Questão 10

Questão
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].
Responda
  • periods
  • atomic weight
  • families

Questão 11

Questão
What is the definition of an atomic number?
Responda
  • The number of protons in the nucleus.
  • The sum of the number of protons and neutrons.
  • The electrical charge of the atom.

Questão 12

Questão
[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.
Responda
  • Protons
  • Neutrons
  • Electrons

Questão 13

Questão
How many electrons are in the 2nd orbit of an electron?
Responda
  • 2
  • 8
  • 16

Questão 14

Questão
Which of the following is NOT an example of the "big four" elements needed for human life?
Responda
  • Carbon
  • Hydrogen
  • Calcium
  • Oxygen
  • Nitrogen

Questão 15

Questão
Which element is responsible for regulating neutrality of body fluids and in energy transfer?
Responda
  • Calcium
  • Phosphorus
  • Potassium
  • Sulfur

Questão 16

Questão
About 90 percent of [blank_start]calcium[blank_end] in the body is present in bones as phosphates and carbonates.
Responda
  • calcium

Questão 17

Questão
Which of the following elements is NOT responsible for helping to regulate electrical balance of body fluids?
Responda
  • Potassium
  • Magnesium
  • Chlorine
  • Sodium

Questão 18

Questão
A [blank_start]cation[blank_end] is an atom that loses one or more electrons, giving it a positive charge.
Responda
  • cation

Questão 19

Questão
Compounds composed of [blank_start]non-metals[blank_end] tend to be molecular.
Responda
  • non-metals

Questão 20

Questão
Which of the following is the strongest of the electrostatic bonds?
Responda
  • Ionic
  • Dipole-Dipole
  • Hydrogen
  • London
  • Covalent

Questão 21

Questão
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.
Responda
  • Metals
  • Non-metals

Questão 22

Questão
Which of the following are examples of ionic bonds?
Responda
  • NaCL (sodium chloride)
  • MgO (magnesium oxide)
  • CaCL2 (calcium chloride)
  • All of the above

Questão 23

Questão
What are dipole-dipole attractions?
Responda
  • The attraction between positive and negative ions.
  • A bond that's only possible when a hydrogen atom is directly bonded to F, O, or N
  • The attraction between the opposite (partial) charges of polar molecules.
  • An instantaneous dipole that is created whenever electrons in a molecule are unevenly distributed.

Questão 24

Questão
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.
Responda
  • ion-dipole

Questão 25

Questão
This image is an example of what kind of bond?
Responda
  • Ion-dipole
  • Dipole-Dipole
  • London forces
  • Hydrogen bonding

Questão 26

Questão
[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.
Responda
  • Hydrogen bonding

Questão 27

Questão
Which of the following is the weakest of the intermolecular forces?
Responda
  • Covalent
  • Hydrogen
  • London
  • Dipole-dipole

Questão 28

Questão
Under the Octet Rule, all atoms want to be [blank_start]noble[blank_end] gases.
Responda
  • noble

Questão 29

Questão
The [blank_start]covalent[blank_end] bond forms the foundation for organic chemistry.
Responda
  • covalent

Questão 30

Questão
Compounds made up of mainly one or more carbon atoms with their respective hydrogen attachments are called [blank_start]hydrocarbons[blank_end].
Responda
  • hydrocarbons

Questão 31

Questão
This image is an example of which gas?
Responda
  • Ethane
  • Alkane
  • Alkenes
  • Methane

Questão 32

Questão
CH3 is an example of a _________ group.
Responda
  • Methyl
  • Alkane
  • Carbonized
  • Ethane

Questão 33

Questão
This image is an example of what common hydrocarbon?
Responda
  • Methane
  • Ethane
  • Butane
  • Pentane

Questão 34

Questão
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]
Responda
  • Propane
  • Butane
  • Pentane
  • Hexane
  • Heptane
  • Octane
  • Nonane
  • Decane

Questão 35

Questão
This image is an example of what molecule?
Responda
  • Pentane
  • Decane
  • Halothane
  • Isoflurane

Questão 36

Questão
Hydrocarbons with a double bond are called [blank_start]alkenes[blank_end]. Hydrocarbons with a triple bond are called [blank_start]alkynes[blank_end].
Responda
  • alkenes
  • alkynes

Questão 37

Questão
What are compounds with identical molecular formulas, but several alternate structures?
Responda
  • Isotonic
  • Isomer
  • Alkane
  • Methyl group

Questão 38

Questão
There are two types of isomers: [blank_start]structural[blank_end] isomers and [blank_start]stereoisomers[blank_end].
Responda
  • structural
  • stereoisomers

Questão 39

Questão
Optical isomers that bend light to the right are called what?
Responda
  • Dextroisomers
  • Levoisomers
  • Structural isomers
  • Beta isomers

Questão 40

Questão
Optical isomers that bend light to the left are called what?
Responda
  • Dextroisomers
  • Levoisomers
  • Structural isomers
  • Beta isomers

Questão 41

Questão
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].
Responda
  • racemic

Questão 42

Questão
Enflurane and what gas are trifluoroethyl difluoromethyl ethers? They have the same chemical formula and atomic weight, but different structure and physical characteristics.
Responda
  • Isoflurane
  • Sevoflorane
  • Halothane
  • Ethane

Questão 43

Questão
What is a set of atoms bonded together in a specific way, which largely defines the chemical and physical properties of a compound?
Responda
  • Functional group
  • Methyl group
  • Alkane group
  • Compound

Questão 44

Questão
Organic molecules have 2 parts: a [blank_start]carbon[blank_end] backbone and one or more [blank_start]functional[blank_end] groups.
Responda
  • carbon
  • functional

Questão 45

Questão
Ethers are composed of two radical groups joined by an atom of what?
Responda
  • Oxygen
  • Carbon
  • Hydrogen
  • Nitrogen

Questão 46

Questão
Which of the following is NOT a member of the halogen group?
Responda
  • Fluorine
  • Chlorine
  • Bromine
  • Iodine
  • Xenon

Questão 47

Questão
A halogenated ether has an [blank_start]oxygen[blank_end] atom to make it more stable.
Responda
  • oxygen

Questão 48

Questão
R-COO-R is the formula for what compounds?
Responda
  • Ethers
  • Esters
  • Amides
  • Amines

Questão 49

Questão
This image is an example of what organic compound?
Responda
  • Ester
  • Amide
  • Amine
  • Ether

Questão 50

Questão
This image is an example of what?
Responda
  • Ester
  • Amide
  • Amine
  • Ether

Questão 51

Questão
The generic formula -CONH2 is the formula for what?
Responda
  • Ethers
  • Esters
  • Amides
  • Amines

Questão 52

Questão
The generic formula for what group is R-NH2 ?
Responda
  • Amides
  • Amines
  • Ethers
  • Esters

Questão 53

Questão
This image is an example of what group?
Responda
  • Amines
  • Amides
  • Esters
  • Ethers

Questão 54

Questão
Epinephrine, norepinephrine, dopamine, phenylephrine, and dobutamine are all examples of [blank_start]amines[blank_end].
Responda
  • amines

Questão 55

Questão
This image is an example of what?
Responda
  • Amine ring
  • Benzene ring
  • Ether ring
  • Ester ring

Questão 56

Questão
Where is the methyl substitution and what is this molecule?
Responda
  • Methyl substitution
  • Epinephrine molecule

Questão 57

Questão
What is this molecule?
Responda
  • Dopamine
  • Norepinephrine
  • Epinephrine
  • Dobutamine

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