Structure of Matter 1

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In a chemical formula, the number of atoms for each element is usually indicated by a: subscript
A compund contains two or more:: elements
temperature scale with water freezing at 0* and boiling at 100*: Celsius Scale
Space occupied measured in cubic units: volume
the smallest part of an element that can exist alone: atom
an instrument for determining mass: balance
the tendency of a body to float in a fluid: buoyancy
the temperature scale with 0* at freezing and 100* at boiling. Same as Celsius.: centigrade
to assign to a category: classify
having the form of a cube: cubic
The mass of a substance per unit of volume: density
to remove from the usual place: displace
the temperature scale wit water freezing at 32* and boling at 212*: fahrenheit
having the properties of a straight line: linear
the amount of matter in an object: mass
the curved top surface of a liquid column: meniscus
two or more atoms chemically combined: molecule
all matter requires its own:: space
the two basic properties of all matter are:: volume and mass
No two units of matter can occupy the same:______at the same:________: Space Time
the volume of a uniform geometric object is usually determined:: mathematically
The volume of an irregularly shaped geometric object is usually determined by the_____of______it displaces: Volume Water
The force produced by the pull of the earth's gravity on an object is called:: weight
th eweight of an object is:: not constant
The factors that affect the weight of an object are:: location on earth mass of the object altitude
the mass of an object is found by:: comparing it with standard mass units
What instrument is used to measure mass: balance
what is the standard unit for measuring mass?: Kilogram
How do you find density?: Mass/Volume
One ml of water would have a density of ___g/cm3: 1
the quantity of mass of an object contained within its volume is a measure of:: Density
the tendency of an object to float is called: Buoyancy
for an object to float the mass of the water displaced must______the mass of the object: equal
archimedes principle relates primarily to:: buoyancey
the temperature scale used most widely by scientists around the world is the______scale: celsius
the temperature at which a liquid changes to a solid is called its______point: freezing
water freezes at_degrees on the celsius scale: 0*
water freezes at __degrees on the fahrenheit scale: 32
the celsius scale has___degrees between the freezing and boiling points of water: 100
shapeless;lacking complex organization: amorphous
mineral or element having geometric shapes as a result of orerly arrangement of its atomic structure: crystalline
an element or compound found in nature: mineral
the force per unit of area: pressure
the temperature at which a liquid turns into gas is its: boiling point
an element which will not combine chemically is:: inert
rusting of metals is caused by:: slow oxidation
instantaneous oxidation will usually result in an:: explosion
the three states of matter are:: solid liquid gas
the two common properties of all solis are fixed _____ an ______: shape volume
what arrangement of atoms or molecules determines whether a soli is crystalline or amorphous?: internal
a solid which lacks orderly internal structure is:: amorphous
glass is an example of which type of solid?: amorphous
a liqui has ____an takes up_____but has no efinite_____: mass space shape
when a solid becomes a liquid its particles are: farther apart
a liquidd tends to seek its own_____: Level
when water freezes it_______: expands
compared to a solid the molecular bonds of a liquid are:: weak
gas pressure is caused by__________of gas molecules within the container: collisions
The freexing point is the temperature at which a liquid changes to a:: solid
THe burning of wood is caused by:: rapid oxidation
instant oxidation is an:: explosion
the two common properties of all solids are fixed _____ and ______: shape volume
amount of matter in an object: mass
upward force of a fluid on an object: buoyancy
fixed shape: solid
freezing point of water: 0*
expands: frozen water
no definite internal order: amorphous
molecules far apart: gas
fixed internal order: crystalline
ability to react with another substance: chemical property
the number of protons in an atom; a number unique to each element: atomic number
a substance made up of only one kind of atom: element
a positive or negative electrical quality: charge
the center of the atom: nucleus
the path in which an electron travels around the atom: orbital
approximately, the number of protons plus neutrons in an atom: atomic weight
a union of two or more diggerent elements in definite proportion by weight: compound
an atomic particle with a negative charge: electron
an atomic particle that has no charge and is found in the nucleus: neutron
the combining power of an atom: valence
an atomic particle which is positively charged and found in the nuclus: proton
The smallest possible part of an element that can still be identified as the element is called an:: atom
Atomic theory was proposed by the christain scientist:: John Dalton
the three main particles of an atom are the:: Proton neutron electron
(t,f)Protons orbit the nucleus: true
t or f Neutrons have a negative electrical charge: False
t or f electrons have almost no mass: true
true or false Electrons are located only in specific shells around the atom: true
t or f Each shell surrounding an atom is limited in the number of electrons it can have: true
t or f the valence of an atom is determinded by the nucleus: false
the atomic weight of an atom equals the sum of the masses of the:: Protons and neutrons
an atom has no electrical charge because: the number of protons is equal to the number of electrons
t or f each shell is limited to a maximum of four electrons: false
the atomic number is equal to the number of:: protons
the shell closest to the nucleus is called the:: inner shell
the shell farthest from the nucleus would be:: n=7
Electrons in the outer shell are called:: valence electrons
how many times greater is the mass of a proton than the mass of an electron: 1,800 times
A molecule of oxygen is made from two_________ atoms.: oxygen
a molecule of water is made from the bonding of one __________atom to two ______ atoms: oxygen hydrogen
THe smallest atomic unit which maintains the physical properties of a compound is a:: molecule
two oxygen atoms combine to form a molecule by sharing:: electrons
th eoxygen molecule is made of two atoms of the same: element
In a _____ the molecules are very close together: solid
A _______ is formed when two or more atoms combine chemically: molecule
a substance made up of only one kind of atom: element
the path in which an electron travels around teh atom: orbital
approximately the number of protins plus neutrons in an atom: atomic weight
a union of two ore more different elements in definite proportion by weight: compound
an atomic particle which is positively charged and found in the nucleus: proton
A molecule of oxygen is made from two _________atoms: oxygen
a molecule of water is made from the bonding of one _______ atom to two ________ atoms.: oxygen hydrogen
Oxygen gas is:: O2
the oxygen molecule is made of two atoms of the same:: element
In a _____the molecules are very close together: solid
a ________is formed when two or more atoms combine chemically: molecule
something that occurs at regular intervals is: Periodic
word meaning a combination of two or more components that retain their own properties is: Mixture
substances composed of only one type of atom are called: elements
pure gold is an": element
how many different elements have scientists discovered: over 100
the illustrated arrangement of the elements and their atomic properties is summarized in the: Periodic table
elements located in the vertical column of the periodic table are of the same _____and have the _______chemical properties: group similar
tf the physical property of being able to dissolve is called solubility: true
tf the sugar water mixture is a solution: true
tf when a substance dissolves it undergoes a chemical change: false
tf the melting and freezing points of a substance are the same: true
tf steam is gas: true
tf water vapor is condensed steam: false
as you climb a mountain the boiling point of water: decreases
tf boiling water in an open pot will continue to get hotter as you continue to heat it: false
the change of state from bapor to a liquid is called: condensation
the change of state from a liquid to a vapor is called: evaporation
the amount of heat needed to raise one gram of substance one degree celsius is called: heat capacity
the heat of fusion of water is__ calories per gram: 80
the heat of vaporization of water is ___ calories per gram: 540

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