through chapter 9
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Matter is anything that takes up space and has WEIGHT | false, mass
🗑
|
||||
| Chemistry is the study of MASS and the changes it undergoes | false, matter
🗑
|
||||
| To measure distance in Si units, you would most likely use the LITER | false,meter
🗑
|
||||
| The SI base unit of temperature is DEGREES CELSIUS | false, Kalvin
🗑
|
||||
| The prefix deci indicates a LARGER number than the prefix centi | true
🗑
|
||||
| Dime: dollar :: DECILITER : liter | true
🗑
|
||||
| The number 8,624,000 in scientific notation is equal to 8.624 x 10^5 | false, 8.624 x 10^6
🗑
|
||||
| On a line graph, a linear relationship between the dependent and independent variables is also called a(n) INDIRECT relationship | false, direct
🗑
|
||||
| In an answer that has four sig. figures TWO ARE ESTIMATED AND TWO ARE KNOWN | false, one is estimated and three are known
🗑
|
||||
| Why is the ozone important to life on earth? | Ozone absorbs much ultraviolet radiation from the Sun
🗑
|
||||
| What is mass? | the amount of matter in an object
🗑
|
||||
| An object has a mass of 126 kg on Earth. What is this object's mass on the moon? | 126 kg
🗑
|
||||
| The branch of chemistry that focuses on carbon | containing chemicals is called...
🗑
|
||||
| Any substance with a definite composition | chemical
🗑
|
||||
| What is a scientific theory? | an explanation supported by many experiments
🗑
|
||||
| A visual, verbal, or mathematical explanation of how things occur | model
🗑
|
||||
| A systematic approach used in all scientific study | scientific method
🗑
|
||||
| Why should chemicals be removed from stick containers in small amounts? | it helps to avoid removing more of a chemical than is needed
🗑
|
||||
| The practical use of scientific research | technology
🗑
|
||||
| Density is often written in which units? | g/cm^3
🗑
|
||||
| If you know an object's density, what other variable do you need to know in order to calculate its mass? | volume
🗑
|
||||
| The prefix equivalent to 1/1000? | milli
🗑
|
||||
| The prefix equivalent to 10^9? | giga
🗑
|
||||
| Refers to how close a series of measurements are to one another | precision
🗑
|
||||
| A ratio of equivalent values used to express the same quantity in different units | conversion factor
🗑
|
||||
| A means of expressing numbers as a multiple of two factors: a number between 1 and 10; and ten raised to a power, or exponent | scientific notation
🗑
|
||||
| 379,000,000 in scientific notation? 3.79 x 10^8 | (blank)
🗑
|
||||
| A unit in a system of measurement is defined by combining base units | derived unit
🗑
|
||||
| To evaluate the accuracy of experimental data, you can calculate the difference between... | an experimental value and an accepted value
🗑
|
||||
| Refers to how close a measured value is to an accepted value | accuracy
🗑
|
||||
| A method of problem solving that focuses on the units used to describe matter, often using conversion factors | dimensional analysis
🗑
|
||||
| A substance's color is an EXTENSIVE physical property | false, intensive
🗑
|
||||
| The particles of matter in a SOLID are tightly packed together | true
🗑
|
||||
| Breaking a stick in half is an example of PHYSICAL change | true
🗑
|
||||
| Burning toast is an example of a PHYSICAL change | false, chemical
🗑
|
||||
| According to the law of the conservation of mass, ENERGY is neither destroyed nor created | false, matter
🗑
|
||||
| A mixture can be separated by PHYSICAL means | true
🗑
|
||||
| If you look closely at a HOMOGENEOUS mixture, you will find distinct components | false, heterogeneous
🗑
|
||||
| A form of matter with a constant volume that takes the shape of its container | liquid
🗑
|
||||
| States that mass is neither created nor destroyed in any process | law of the conservation of mass
🗑
|
||||
| A separtion technique that results in the formation of pure solid particles from a solution | crystallization
🗑
|
||||
| A technique that separates the components of a mixture | chromatography
🗑
|
||||
| States the regardless of the amount, a compound is always composed of the same elements in the same proportion by mass | law of definite proportions
🗑
|
||||
| States that the different masses of one element combine with the same relative mass of another element to form different compounds | law of multiple proportions
🗑
|
||||
| The grid organizing elements into periods and groups | periodic table
🗑
|
||||
| The ratio of mass to the total mass of the compound | percent by mass
🗑
|
||||
| DEMOCRITUS proposed that matter is composed of empty space through which atoms move | true
🗑
|
||||
| DALTON'S original atomic theory incorrectly stated that atoms cannot be divided into smaller particales | true
🗑
|
||||
| An atom is the smallest particle of a COMPOUND that still has the properties of that COMPOUND | false, element
🗑
|
||||
| Most of an atom's mass is due to its protons and ELECTRONS | false, neutrons
🗑
|
||||
| NEUTRONS have no electrical charge | true
🗑
|
||||
| Potassium's three, naturally occuring isotopes can have 20, 21, or 22 PROTONS | false, neutrons
🗑
|
||||
| An alpha particle consists of two protons and two ELECTRONS | false, neutrons
🗑
|
||||
| The smallest particle of an element that retains the properties of that element | atom
🗑
|
||||
| States that all matter is composed of atoms | Dalton's atomic theory
🗑
|
||||
| Which subatomic particle has a negative charge? | electron
🗑
|
||||
| The centermost part of an atom where the protons and neutrons are contained | nucleus
🗑
|
||||
| Atoms with the same # of protons but different numbers of neutrons | isotopes
🗑
|
||||
| The weighted average mass of an elements isotopes | atomic mass
🗑
|
||||
| Equal to 1/12 of the mass of a carbon12 atom | atomic mass unit
🗑
|
||||
| ALL WAVES are characterized by wavelength, amplitude, frequency, and speed | true
🗑
|
||||
| Electromagnetic radiation DOES NOT INCLUDE visible light from the sun, microwaves, X rays, and radio waves | false, does include
🗑
|
||||
| A wave's FREQUENCY is measured in hertz | true
🗑
|
||||
| The set of frequencies of the elctromagnetic waves emitted by the atoms of an element | atomic emission spectrum
🗑
|
||||
| A form of energy that exhibits wavelike behavior as it travels through space | electromagnetic radiation
🗑
|
||||
| The shortest distance between equivalent points on a continuous wave | wavelength
🗑
|
||||
| A particle of electromagnetic radiation with no mass that carries a quantum of energy | photon
🗑
|
||||
| Relates the wavelength, frequency, and speed of an electromagnetic wave | c=wavelength?n
🗑
|
||||
| What is the lowest allowable energy state of an atom called? | ground state
🗑
|
||||
| A three | dimensional region around the nucleus of an atom that describes an electron's probable location
🗑
|
||||
| Energy relationship developed by Planck | E=hv
🗑
|
||||
| The modern periodic table arranges the elements in order of increasing ATOMIC MASS | F, atomic number
🗑
|
||||
| The row of elements in the periodic table is called a GROUP | F, periods
🗑
|
||||
| Elements in a column of the periodic table have similar properties because they have the same number of VALENCE ELECTRONS | true
🗑
|
||||
| An element with the electron config. [He] 2s^2 2p^3is found in the S | BLOCK
🗑
|
||||
| The ionic radii of the elemtns generally INCREASES as one moves down a column of the periodic table | true
🗑
|
||||
| The first ionization energy generally DECREASES as you move down a column of the periodic table | true
🗑
|
||||
| Most of the elements in groups 16 | 17 are classified as
🗑
|
||||
| Statement that when the elements are arranged by increasing atomic number there is a periodic repition of their chemical and physical properties | periodic law
🗑
|
||||
| Group 1 elements (except for hydrogen) | alkali metals
🗑
|
||||
| A column in the periodic table | group
🗑
|
||||
| Group 17 elements | halogens
🗑
|
||||
| How many electrons does an atom generally need in its outer level to be the most stable? | 8
🗑
|
||||
| Atom or bonded group that has a positive or negative charge | ion
🗑
|
||||
| Energy required to remove an electron from a gaseous atom | ionization energy
🗑
|
||||
| Statement that atoms tend to gain, lose, or share electrons to acquire a full set of eight valence electrons | octet rule
🗑
|
||||
| Indication of an atom's ability to attract electrons in a chemical bond | electronegativity
🗑
|
||||
| The most common isotope of hydrogen is HYDROGEN2 | False, protium
🗑
|
||||
| For NONMETALS, the reactivity decreases as the atomic number increase | true
🗑
|
||||
| Of the first two groups in the periodic table, the ALKALI METALS are generally more reactive | true
🗑
|
||||
| Boron is an example of a METAL | F, metalloid
🗑
|
||||
| For transition metals, the greater the number of UNPAIRED electrons in the d sublevel, the greater is the metal's hardness and its boiling point | true
🗑
|
||||
| The elements hydrogen is considered to be... | in a group of its own
🗑
|
||||
| What is a characteristic common to all alkali metals? | they readily react with water to form alkaline solutions
🗑
|
||||
| Alkaline earth metlas form ions with a... | +2 charge
🗑
|
||||
| Used to make lightweight alloys for airplanes | magnesium
🗑
|
||||
| The most reactive of all the elements is the halogen | fluorine
🗑
|
||||
| What is the cahrge on the most common ion of the elements in group 13? | 3+
🗑
|
||||
| Diamond and graphite... | are allotropes
🗑
|
||||
| Which group of elements are the most importnat for living organisms | carbon, nitrogen, and oxygen
🗑
|
||||
| An element or inorganic compound that is found in nature as solid crystals | mineral
🗑
|
||||
| Material from which a mineral can be removed at a reasonable cost | ore
🗑
|
||||
| The branch of chemistry that deals with all non | organic compounds
🗑
|
||||
| Forms of an element in the same state with different structures and properties | allotrope
🗑
|
||||
| Used in cleaning products and fertilizers | phosphorus
🗑
|
||||
| Used in many storage batteries | lead
🗑
|
||||
| Used in the manufacture of lightbulbs | argon
🗑
|
||||
| Used to strengthen teeth | fluorine
🗑
|
||||
| For a transition metal, a change in ionic charge is often accompanied by | an increase in reactivity
🗑
|
||||
| In general, the last electron of an inner transition metal enters | an f sublevel
🗑
|
||||
| When a substance's valence electrons are slightly attracted to a magnetic field, the substance displats | paramagnetism
🗑
|
||||
| Elements with a higher atomic number than uranium are | not found in nature
🗑
|
||||
| A mixture of two or more elements with at least one of the elements being a metal | alloy
🗑
|
||||
| Property of a substance whose ions all align in the direction of a magnetic field | ferromagnetism
🗑
|
||||
| A cation is a NEGATIVELY charged particle | F, positively
🗑
|
||||
| The force that holds two atoms together is called a CHEMICAL BOND | true
🗑
|
||||
| To form a negative ion, a neutral atom must LOSE electrons | F, gain
🗑
|
||||
| When ionic compounds from positive and negative ions is almost always ENDOTHERMIC | F, exothermic
🗑
|
||||
| The simplest ratio of the ions represented in an ionic compound is called a FORMULA UNIT | true
🗑
|
||||
| A sulfate ion contains FEWER oxygen atoms than a sulfite ion does | F, more
🗑
|
||||
| In naming a monatomic anion, the suffix IDE is used | true
🗑
|
||||
| Delocalized valence electrons are typical of IONIC COMPOUNDS | F, metallic compounds
🗑
|
||||
| When a metal reacts with a nonmetal, the metal tends to GAIN electrons | F, lose
🗑
|
||||
| The reactivity of an elements depends mainly on the number of | valence electrons
🗑
|
||||
| What is the electron config. for the noble gases other than helium | ns^2np^6
🗑
|
||||
| The force that holds two atoms together | chemical bond
🗑
|
||||
| A positively charged ion | cation
🗑
|
||||
| A negatively charged ion | anion
🗑
|
||||
| An ionic compound whose aqueous solution conducts electricity | electrolyte
🗑
|
||||
| The name for most ionic compounds other than oxides | salts
🗑
|
||||
| The energy needed to separate the ions of an ionic compound | lattice energy
🗑
|
||||
| The anion that has the formula CLO is called the | hypochlorite ion
🗑
|
||||
| Where does a subscript that indicates the number of atoms appear, relative to a chemical symbol in a formula? | to the lower right
🗑
|
||||
| For a monatomic ion, is equal to the charge | oxidation number
🗑
|
||||
| A charged particle containing more than one atom | polyatomic ion
🗑
|
||||
| When a double covalent bond is formed, TWO electrons are shared | F, four
🗑
|
||||
| In a PI bond, electrons are shared in an area cenetered between the two bonding atoms | F, sigma
🗑
|
||||
| In naming a binary compound, the prefix used to indicate the presence of four atoms of a given kind is QUADRI | false, tetra
🗑
|
||||
| Hydrochloric acid is an example of a(n) OXYACID | false, binary acid
🗑
|
||||
| In a chemical name the prefix used to indicate the presence of two atoms of a given kind is BI | F, di
🗑
|
||||
| The prefix HYDRO is used in naming binary acids | true
🗑
|
||||
| The oxyacid suffix for an acid that contains an anion ending in ate is IC | true
🗑
|
||||
| In the carbon dioxide molecule, the central atom is a CARBON atom | true
🗑
|
||||
| In the compound BH3, the boron atom has MORE than an octet of electrons | F, less
🗑
|
||||
| The VSEPR model is used to determine the SIZE of a molecule | F, shape(structure)
🗑
|
||||
| The VSEPR model is based on the idea that in a molecule, NUCLEI repel each other as much as possible | F, electrons
🗑
|
||||
| According to the octet rule, most atoms that bond covalently achieve the electron config. of a | noble gas
🗑
|
||||
| In the formation of a covalent bond, electrons are | shared
🗑
|
||||
| Four electrons are shared in a | double covalent bond
🗑
|
||||
| How many pi bonds are there in a triple bond? | two
🗑
|
||||
| Any bond in which there is electron sharing | covalent bond
🗑
|
||||
| The particle formed when two or more atoms bond covalently | molecule
🗑
|
||||
| Reactions that occur when more energy is released forming new bonds than is required to break bonds in the initial reactants | exothermic
🗑
|
||||
| A kind of bond formed by overlap of parallel orbitals | pi bond
🗑
|
||||
| Any acidic compound that contains oxygen | oxyacid
🗑
|
||||
| A model that shows how the atoms are arranged in a molecle | structural formula
🗑
|
||||
| A condition that occurs when more than one valid Lewis structure can be drawn for a molecule | resonance
🗑
|
||||
| The creation of a set of new, identical orbitals by the rearrangement of valence electrons within an aomtis called | hybridizatioon
🗑
|
||||
| The tendency of an atom in a compound to attract electrons | electronegativity
🗑
|
||||
| A kind of bond in which there is unequal sharing of electrons | polar covalent
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
raseaman
Popular Chemistry sets