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Science Vocab

What is the Law of conversion of mass? Matter can not be created nor distroyed
What is Physical change? a change from one state (solid or liquid or gas) to another without a change in chemical composition.
What is Chemical change? when a substance combines with another to form a new substance
What is an element? An element is a substance that is made entirely from one type of atom
What is a chemical formula? a representation of a substance using symbols for its constituent elements.
What is a element(diamotic)molecule? A molecule is formed when two or more atoms join together chemically.
What is a compound molecule A compound is a molecule that contains at least two different elements.
What is a chemical equation? A chemical equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side
What is a chemical reaction? 1.A process that involves rearrangement of the molecular or ionic structure of a substance.
What are reactants(in a chemical equation)? substance that takes part in and undergoes change during a reaction
What is a product(in a chemical equation)? substances formed in the chemical reaction.
What is a cofficient(in a chemical equation)? The number of molecules of reactants or products.
What is a subscript(in a chemical equation)? numbers used to tell you how many atoms of an element are present in the equation
Created by: q0302961