Stepp's Chemistry Ch 1 - Matter and Change
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each of the black spaces below before clicking
on it to display the answer.
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| The branches of chemistry are: organic, inorganic, ___, analytical, biochemistry, and ___ chemistry | physical, theoretical
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| Any substance with a definite composition | chemical
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| The study of the properties and changes of matter and their relation to energy | Physical Chemistry
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| Chemistry can be broken in to the following three areas basic research, applied research, and ___ development | technological
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| Mass is a measure of the amount of ___ | matter
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| Matter is anything that has ___ and takes up ___ | mass, space
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| The smallest unit of an element that maintains the properties of that element is a(an) ___ | atom
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| A pure substance that cannot be broken down into simpler, stable substances and is made of only one type of atom is a(an) ___ | element
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| A __ is a substance that can be broken down into simple stable substances. | compound
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| Compounds are made of __ __ __ __ that are chemically bonded | two or more elements
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| There are two kinds of properties of matter: ___ and ___ | intensive and extensive
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| ___ properties depend upon the amount of matter that is present | extensive
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| ___ properties do not depend upon the amount of matter present | intensive
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| A __ property is a characteristic that can be observed or measured without changing the identity of the substance | physical
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| Physical properties describe the substance itself rather than how it can ___ into other substances | change
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| Melting point, boiling pt., conductivity, tensile strength, color, and malleability are are examples of ___ properties | physical
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| A change in a substance that does not involve a change in the ___ of the substance is a physical change | identity
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| Solid, liquid, ___ and ___ are states of matter. | gas, plasma
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| Solids have definite ___ and ___ | shape, volume
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| Liquids have definite ___ but take on the shape of their ____ | volume, container
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| ___ have neither definite shape or definite volume | Gases
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| A high temperature more energetic gas-like state in which the atoms have lost most of their electrons is called ___ | plasma
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| Chemical properties cannot be observed without changing the ___ of the substance because they deal with reactivity | identity
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| A chemical ___ results in the formation one or more different substance with different properties | change (or reaction)
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| Yields, produces, forms, reacts to make, combusts, and decomposes to form, are some of the ways to read the ___ in a chemical reaction | arrow
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| Initial substance that react to form the products are called ___ | reactants
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| Substances formed by the reaction are called ___ | products
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| When physical or chemical changes occur, ___ is always involved. | energy
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| Matter is neither created nor ___ in a chemical reaction | destroyed
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| Energy can be released or absorbed but the total amount remains the same because energy is always ___ according to the Law of Conservation of Energy | conserved
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| When two or more substances are blended together physically but not chemically bonded it is called a ___ | mixture
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| Unlike ___, substances in mixtures retain their individual identities and properties | compounds
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| ___ mixtures have uniform composition | homogeneous
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| Another name for homogeneous mixture is ___ | solution
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| Mixtures that are not homogeneous throughout are called ___ | heterogeneous
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| Pure substances and solutions are both homogeneous but only a ___ has varying composition (concentration) | solution
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| The periodic table can be divided into metals, nonmetals and ___ | metalloids
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| metals, unlike nonmetals are good conductors of both heat and ___ | electricity
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| Noble Gases are elements in the far ___ column of the periodic table that are very nonreactive | right
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| Columns on the periodic table are called ___ and contain elements that are very similar. | groups
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| A ___ is a row on the periodic table. | Family
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