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Chem209,213,

Chemical Reactions

QuestionAnswer
In what type of chemical reaction do two elements combine into one compound? Combination
In what type of chemical reaction does a compound split apart into its individual elements? Decomposition
In what type of chemical reaction does an element react with a compound and replace one of the elements in that compound? Single Replacement
In what type of chemical reaction do two compounds switch partners and create two entirely different compounds? Double Replacement
In what type of chemical reaction does Oxygen react & combine with other elements or compounds? Oxidation
What is another name for the Oxidation reaction? Combustion
What is usually one of the products in an Oxidation reaction? Water
How can you tell if a chemical equation is balanced? When there are the same number of atoms of each element in the reactants as in the products (on the lefts side of the arrow as on the right side of the arrow.)
Which number in a chemical equation refers to the number of atoms in a compound, the large coefficient number or the small subscript number? The small subscript number.
Which number in a chemical equation refers to the number of molecules or formula units of a compound, the large coefficient number or the small subscript number? The large coefficient number.
What scientific law is represented by the balancing of a chemical equation? The Law of Conservation of Mass.
True or False: Atoms are conserved during a chemical reaction. True
True or False: Molecules are conserved during a chemical reaction. False
What are chemical bonds? The forces that hold atoms together in a compound.
In a chemical reaction what happens to the chemical bonds? Original bonds of the reactants are broken and new bonds are formed to create the products.
Mole The weight in grams of a substance equal to its total atomic mass.
Acid-Base Reaction Usually produced a salt + water.
both are neutralized Acid-Base Reaction
Endothermic Needs heat to make reaction happen
Heat goes into reaction Endothermic
Exothermic Heat goes out of reaction.
Produces heat. Exothermic
Created by: kastega
 

 



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