The 'Chemical Reactions Test Period 4' assesses understanding of chemical reactions, differences between physical changes and chemical reactions, and the importance of balancing equations. It reinforces the law of conservation of mass and skills in balancing complex chemical equations.
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A + A --> A2
AB --> A + B
A2 + B2 --> 2AB
2AB --> A2 + B2
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Endothermic
Exothermic
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Because of the law of conservation of energy
Because they just want to
Because of the law of conservation of mass
Because they need to get fast reaction rates
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Physical Change
Law of Proportions
Chemical Reaction
Chemical Property
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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High
Low
The bond strength will not affect the activation energy
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Yes....as long as the milk flavor did not start to decrease
No...it needs to stay this cold
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Endothermic
Exothermic
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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Products
Reagents (this means reactants)
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Use a whole tablet in cold water
Use a crushed tablet in room temperature water
Use a crushed tablet in warm water
Use a whole tablet in warm water
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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Florida
Colorado
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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Synthesis
Decomposition
Combustion
Single Replacement
Double Replacement
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Temperature
Surface Area
Pressure
Using a Catalyst
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Yes because the bond strength of AB is strong
No because the bond strength of the reactants is strong but the strength of the product bond is weak
Not enough information
Yes because the bond strength of reactants and products is the same
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In a chemical recation new atoms are formed
In a chemical change bonds are broken and atoms are rearranged
In a physical change atoms are lost
In a physical change bonds are broken but in a chemical reaction they are not broken
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Increase the pressure
Increase the concentration
Add a catalyst
Decrease the temperature
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Temperature
Concentration
Pressure
Surface Area
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