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My Chemical Romance
Balance Beam
Stop and Go
Physical Science Rocks!
Name that reaction
100
A release of energy is a sign that chemical/physical change is taking place.
What is chemical change
100
The substance that is formed in a chemical reaction is called the _________.
What is the product
100
True of False: Catalysts are used up in a chemical reaction.
What is false
100
A _______ occurs when a substance goes through chemical changes to form new substances by rearranging atoms.
What is chemcial reaction
100
This formula A+B---> AB represents what type of reaction
What is synthesis
200
Where is chemical energy stored?
What is in chemical bonds
200
A substance that undergoes a change in a chemical reaction is the _____.
What is reactant
200
A chemical equation is balanced by changing or adding what?
What are coefficients
200
What can you not change when balancing an equation?
What are the subscripts
200
A series of reactions in which there is a breakdown of complex materials into simpler substances is what type of reaction
What is decomposition
300
Name three things that will help speed up a chemical reaction.
What is increased surface area, higher pressure, higher temperature, presence of a catalyst
300
In a balanced chemical equation, the mass of the reactants is equal to the _______.
What is the mass of the products
300
An inhibitor is used to ___________ a reaction.
What is slow down
300
Give two examples of how you know a chemical reaction is occuring.
What is heat si released, a color change occurs, gas is given off
300
This formular represents what type of reaction: AX+B-->AB+X
What is Single-displacement
400
Balance this equation: C2H4+O2--> CO2+H2O
What is C2H4+3O2--> 2CO2+2H2O
400
A slow reaction is likely to occur when the reactants have ______ temperatures and ________ surface areas.
What is low temperatures and small surface areas
400
An enzyme is used to __________ a biochemical reaction.
What is speed up
400
Would having a larger or smaller surface area cause a reaction to occur faster?
What is having a larger surface area
400
A more reactive element takes the place of a less reactive element is what type if reaction?
What is single-displacement
500
What type of reaction produces an increase in temperature?
What is exothermic reaction
500
When a chemical reaction and its reverse occur at the same time and rate, the reaction is said to be in ______.
What is chemical equilibrium
500
An inhibitor and an enzyme are both examples of what?
What are catalysts
500
Endothermic or Exothermic reactions form bonds.
What is exothermic reactions
500
This formular represents what type of reaction: AX+BY-->AY+BX
What is Double-displacement