Balancing 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 a balanced chemical equation?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.
2.
FLASHCARD QUESTION
Front
What is the first step in balancing a chemical equation?
Back
Identify the number of atoms of each element in the reactants and products.
3.
FLASHCARD QUESTION
Front
What does the coefficient in a chemical equation represent?
Back
The coefficient indicates the number of molecules or moles of a substance involved in the reaction.
4.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Mass?
Back
It states that no matter can be created or destroyed in a chemical reaction.
5.
FLASHCARD QUESTION
Front
How do you determine if a chemical equation is balanced?
Back
Count the number of atoms of each element on both sides of the equation and ensure they are equal.
6.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.
7.
FLASHCARD QUESTION
Front
What is the chemical formula for water?
Back
H₂O, which indicates it is a compound made of hydrogen and oxygen.
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