Writing Chemical Equations
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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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 are products in a chemical reaction?
Back
Products are the substances that are formed as a result of a chemical reaction.
3.
FLASHCARD QUESTION
Front
In the reaction of hydrogen gas and oxygen gas, what is produced?
Back
Water (H2O) is produced when hydrogen gas reacts with oxygen gas.
4.
FLASHCARD QUESTION
Front
What happens to temperature in an exothermic reaction?
Back
In an exothermic reaction, the temperature increases as heat is released into the surroundings.
5.
FLASHCARD QUESTION
Front
What is NOT an example of a chemical change?
Back
Change in size is NOT an example of a chemical change; it is a physical change.
6.
FLASHCARD QUESTION
Front
What is a reactant?
Back
A reactant is a substance that undergoes a chemical change in a reaction.
7.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.
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