What is a chemical change?
2021 ICP Fall Final

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•
Chemistry
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A chemical change involves a transformation that alters the chemical composition of a substance, resulting in the formation of new substances.
2.
FLASHCARD QUESTION
Front
What is an example of a chemical change?
Back
Chewing and digesting food, such as a bagel and cream cheese, is a chemical change because it breaks down the food into new substances.
3.
FLASHCARD QUESTION
Front
What does it mean for a solution to be supersaturated?
Back
A supersaturated solution contains more solute than can normally dissolve at a given temperature, often achieved by heating the solution and then cooling it.
4.
FLASHCARD QUESTION
Front
What is an endothermic reaction?
Back
An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat.
5.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
An exothermic reaction is a chemical reaction that releases energy to its surroundings, usually in the form of heat.
6.
FLASHCARD QUESTION
Front
What is a covalent bond?
Back
A covalent bond is a type of chemical bond where two atoms share electrons to fill their outer electron shells.
7.
FLASHCARD QUESTION
Front
What happens to temperature in an exothermic reaction?
Back
In an exothermic reaction, the temperature of the surroundings increases as energy is released.
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