Unit 3 Review

Flashcard
•
Chemistry
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are hydrocarbons?
Back
Molecules that only contain carbon and hydrogen.
2.
FLASHCARD QUESTION
Front
What is Combustion?
Back
A reaction between a substance (fuel, wood, paper, etc.) and oxygen that releases carbon dioxide and water, with lots of energy.
3.
FLASHCARD QUESTION
Front
Which part of the Bunsen flame is the hottest?
Back
C
4.
FLASHCARD QUESTION
Front
What is specific heat capacity?
Back
The heat energy needed to raise the temperature of 1g of a substance by 1°C.
5.
FLASHCARD QUESTION
Front
In a heat exchange, if a metal cube at 70°C is immersed in water at 20°C, what happens?
Back
The metal loses heat while the water gains heat.
6.
FLASHCARD QUESTION
Front
What is the chemical formula for water?
Back
H₂O
7.
FLASHCARD QUESTION
Front
What is the process of photosynthesis?
Back
The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.
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