Chemical Changes
Types of Reactions
Chemical Reactions and Energy
Reaction Rates
HodgePodge
100
A change in which one or more substances are converted into new substance.
What is a Chemical Reaction
100
A + B ====> AB
What is a Synthesis Reaction
100
The energy required to get a reaction started. Important!
What is Activation Energy
100
The rate at which chemical reactions take place.
What is Reaction Rate.
100
If something burns two "products" that result will be
What is Water and carbon dioxide.
200
The substances on the left side of the arrow in a chemical equation.
What are the Reactants.
200
AB =====> A + B
What is Decomposition.
200
A reaction that releases more energy than is required to get the reaction started.
What is a Exergonic Reaction
200
Increasing this generally speeds up a chemical reaction by increasing the number collisions between molecules.
What is Temperature.
200
The total amount of energy in a chemical reaction has to follow this law of Chemistry.
What is The Law of the Conservation of Energy.
300
The substances on the right side of the arrow in a chemical equation.
What are the Products.
300
AB + C ====> AC + B
What is a Single Replacement (Displacement) Reaction.
300
A reaction that requires more energy to break the bonds of the reactants than it does to form the new bonds of the products.
What is Endergonic
300
Increasing the ______________ of a solution will often speed up a chemical reaction. Think of an acid-base reaction.
What is Concentration
300
Breaking glass is an example of a Physical or chemical change?
What is Physical.
400
The numbers to the left of a chemical formula that represent the number of units of each substance.
What are Coefficients.
400
AB + CD =====> AC + BD
What is a Double Replacement (Displacement) Reaction
400
This means to give off heat or thermal energy during a reaction.
What is Exothermic Reactions
400
This substance speeds up a chemical reaction without being changed itself.
What is a Catalyst.
400
Burning paper is an example of a physical or chemical change?
What is Chemical.
500
The law that states that matter cannot be created nor destroyed and that the number of atoms of each element must be balanced on both sides of an equation.
What is The Law of Conservation of Matter.
500
Type of reaction that requires Oxygen on the left and CO2 and H2O on the right.
What is Combustion Reaction
500
This reaction absorbs thermal energy or heat from its surroundings.
What is Endothermic
500
This substance slows down a chemical reaction.
What is an Inhibitor
500
When the number of atoms on one side = the number of atoms on the other side of a chemical equation, the equation is said to be...
What is Balanced.
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