5.0 Chemical Reactions

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•
Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is an endothermic reaction?
Back
An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.
2.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.
3.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation: AgF + CaCl2 → AgCl + CaF2?
Back
This is a double replacement reaction.
4.
FLASHCARD QUESTION
Front
What is the effect of smaller particle size on the surface area for a reaction?
Back
Smaller particle size allows for a larger surface area to be exposed for the reaction.
5.
FLASHCARD QUESTION
Front
What does it mean for a chemical equation to be balanced?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, obeying the law of conservation of mass.
6.
FLASHCARD QUESTION
Front
Which of the following is a correctly balanced equation: 6CO2 + 6H2O → C6H12O6 + 6O2?
Back
This equation is correctly balanced.
7.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation: 3Mg + N2 → Mg3N2?
Back
This is a synthesis reaction.
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