Week 30 Flashcard
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, following the law of conservation of mass.
2.
FLASHCARD QUESTION
Front
What is the coefficient in a chemical equation?
Back
The coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.
3.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation: CH4 + 2O2 -> CO2 + 2H2O?
Back
This is a combustion reaction, where a hydrocarbon reacts with oxygen to produce carbon dioxide and water.
4.
FLASHCARD QUESTION
Front
What is an acid-base neutralization reaction?
Back
An acid-base neutralization reaction occurs when an acid reacts with a base to produce water and a salt.
5.
FLASHCARD QUESTION
Front
What is a synthesis reaction?
Back
A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product.
6.
FLASHCARD QUESTION
Front
What does the symbol (s) indicate in a chemical equation?
Back
The symbol (s) indicates that the substance is in a solid state.
7.
FLASHCARD QUESTION
Front
What does the symbol (g) indicate in a chemical equation?
Back
The symbol (g) indicates that the substance is in a gaseous state.
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