en CR Chemical Formulas and Equations 16 ionic compound : a chemical compound in which ions are held together in a lattice structure by ionic bonds molecular compound : the smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms bonded together by the sharing of electrons subscripts : a distinguishing character or symbol written directly beneath or next to and slightly below a letter or number; in chemical formula writing, the subscript denotes how many atoms or ions of a particular element of polyatomic ion are present nomenclature : a system of naming chemical compounds and for describing the science of chemistry in general; maintained by the International Union of Pure and Applied Chemistry polyatomic ions : an electrically charged species formed by covalent bonding or atoms of two or more different elements, usually nonmetals reactant : a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction product : a substance resulting from a chemical reaction Law of Conservation of Mass : the notion that mass, or matter, can neither be created nor destroyed coefficient : a number placed in front of a term in a chemical equation to indicate how many molecules or atoms take part in the reaction precipitate : to be separated from a solution as a solid aqueous : a solution dissolved in water synthesis reaction : a direct combination reaction in which two or more reactants combine to form a single product decomposition reaction : a chemical reaction in which a compound is broken down into simpler compounds, or even into elements single replacement reaction : a chemical reaction in which an element replaces one element in a compound; a single uncombined element replaces another in a compound double replacement reaction : a molecular process involving the exchange of bonds between two reacting chemical species, which results in the creation of products with similar or identical bonding affiliations; also known as a metathesis reaction combustion reaction : the burning of any substance, in gaseous, liquid, or solid form; a chemical reaction that involves the rapid combination of a fuel with oxygen activity series : a series of elements that have similar properties, for example, metals, arranged in descending order of chemical activity hydrocarbon : any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen

Chemical Formulas and Equations

Across:

2.	the burning of any substance, in gaseous, liquid, or solid form; a chemical reaction that involves the rapid combination of a fuel with oxygen
3.	a chemical reaction in which an element replaces one element in a compound; a single uncombined element replaces another in a compound
4.	a chemical compound in which ions are held together in a lattice structure by ionic bonds
12.	a molecular process involving the exchange of bonds between two reacting chemical species, which results in the creation of products with similar or identical bonding affiliations; also known as a metathesis reaction

13.	a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction
14.	to be separated from a solution as a solid
15.	the notion that mass, or matter, can neither be created nor destroyed

Down:

1.	a system of naming chemical compounds and for describing the science of chemistry in general; maintained by the International Union of Pure and Applied Chemistry
5.	any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen
6.	a distinguishing character or symbol written directly beneath or next to and slightly below a letter or number; in chemical formula writing, the subscript denotes how many atoms or ions of a particular element of polyatomic ion are present
7.	an electrically charged species formed by covalent bonding or atoms of two or more different elements, usually nonmetals
8.	the smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms bonded together by the sharing of electrons

9.	a solution dissolved in water
10.	a series of elements that have similar properties, for example, metals, arranged in descending order of chemical activity
11.	a number placed in front of a term in a chemical equation to indicate how many molecules or atoms take part in the reaction
14.	a substance resulting from a chemical reaction

Chemical Formulas and Equations

Across:

2.	the burning of any substance, in gaseous, liquid, or solid form; a chemical reaction that involves the rapid combination of a fuel with oxygen
3.	a chemical reaction in which an element replaces one element in a compound; a single uncombined element replaces another in a compound
4.	a chemical compound in which ions are held together in a lattice structure by ionic bonds
12.	a molecular process involving the exchange of bonds between two reacting chemical species, which results in the creation of products with similar or identical bonding affiliations; also known as a metathesis reaction

13.	a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction
14.	to be separated from a solution as a solid
15.	the notion that mass, or matter, can neither be created nor destroyed

Down:

1.	a system of naming chemical compounds and for describing the science of chemistry in general; maintained by the International Union of Pure and Applied Chemistry
5.	any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen
6.	a distinguishing character or symbol written directly beneath or next to and slightly below a letter or number; in chemical formula writing, the subscript denotes how many atoms or ions of a particular element of polyatomic ion are present
7.	an electrically charged species formed by covalent bonding or atoms of two or more different elements, usually nonmetals
8.	the smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms bonded together by the sharing of electrons

9.	a solution dissolved in water
10.	a series of elements that have similar properties, for example, metals, arranged in descending order of chemical activity
11.	a number placed in front of a term in a chemical equation to indicate how many molecules or atoms take part in the reaction
14.	a substance resulting from a chemical reaction

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Chemical Formulas and Equations

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