Chemical Reactions

Flashcard
•
Chemistry
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process where reactants transform into products, involving the breaking and forming of chemical bonds.
2.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Substances that undergo change during a chemical reaction, found on the left side of the equation.
3.
FLASHCARD QUESTION
Front
What are products in a chemical equation?
Back
Substances formed as a result of a chemical reaction, found on the right side of the equation.
4.
FLASHCARD QUESTION
Front
How do you determine the number of atoms in a chemical equation?
Back
By using the coefficients and subscripts in the chemical formula.
5.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.
6.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved.
7.
FLASHCARD QUESTION
Front
What is a subscript in a chemical formula?
Back
A small number written after an element symbol that indicates the number of atoms of that element in a molecule.
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