What is the balanced chemical equation for the reaction of hydrogen and oxygen to form water?
8th Grade Science STAAR Review

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Science
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8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
@@2H_2 + O_2 ightarrow 2H_2O@@
2.
FLASHCARD QUESTION
Front
What biome is characterized by low temperatures and low precipitation, primarily in the form of snow?
Back
Tundra
3.
FLASHCARD QUESTION
Front
What is a biotic factor in an ecosystem?
Back
Plants
4.
FLASHCARD QUESTION
Front
What is the basic unit of life in all living organisms?
Back
Cell
5.
FLASHCARD QUESTION
Front
How does increasing the concentration of reactants affect the rate of a chemical reaction?
Back
It increases the rate of reaction.
6.
FLASHCARD QUESTION
Front
What is the process by which plants make their own food using sunlight?
Back
Photosynthesis
7.
FLASHCARD QUESTION
Front
What is the term for a substance that speeds up a chemical reaction without being consumed?
Back
Catalyst
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