Question | Answer |
The Definition of Compound Molecules | a compound regarded as a union of molecules retaining their identities |
The Definition of Law of Conservation of Mass | is a relation stating that in a chemical reaction, the mass of the products equals the mass of the reactants. |
The Definition of Physical Change | is a type of change in which the form of matter is altered but one substance is not transformed into another. |
The Definition of Chemical Change | a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance |
The Definition of Element | are chemically the simplest substances and hence cannot be broken down further using chemical methods. |
The Definition of Chemical Formula | a representation of a substance using symbols for its constituent elements |
The Definition of Element (Diatomic) Molecule | are molecules composed only of two atoms, of either the same or different chemical elements. |
The Definition of Chemical Equation | A symbolic representation of what happens when chemicals come in contact with one another |
The Definition of Chemical Reaction | A process in which one or more substances (reactants) are chemically changed into one or more new substances (products). |
The Definition of Reactants | A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction. |
The Definition of Subscripts | A distinguishing character or symbol written directly beneath or next to and slightly
below a letter or number. |
The Definition of Ionic Compound | a chemical compound of cations and anions which are held together by ionic bonds in a lattice structure. |
The Definition of Calvent Compound | a molecule formed by covalent bonds, in which the atoms share one or more pairs of valence electrons |
The Definition of Metallic Compound | A metallic compound is a compound that contains one or more metal elements. |
The Definition of Synthesis | The combining of separate elements or substances to form a coherent whole. |
The Definition of Decomposition | The act or result of decomposing; disintegration |
The Definition of Single Replacement | A chemical reaction in which an element replaces one element in a compound. |
The Definition of Double Replacement | a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound |
The Definition of Products | A product is a substance that is formed as the result of a chemical reaction. |
The Definition of Coefficient | A number or letter put before a letter or quantity, known or unknown, to show how many times the latter is to be taken; as, 6x; bx; here 6 and b are coefficients of x. |