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eMusic Study Pack • Chemistry
Student
📖 Comprehensive Note
Law of Conservation of Mass — In any chemical reaction, matter is neither created nor destroyed. The total mass of reactants equals the total mass of products.
- Established experimentally by Antoine Lavoisier in the late 18th century.
- Essential for balancing chemical equations and quantitative chemistry.
- Applies in closed systems where mass cannot enter or leave during the reaction.
🎤 Lyrics
Verse 1
In every flame and every spark,
Atoms move, but leave no mark.
Lavoisier proved with watchful eyes,
No matter’s gone, no mass denies.
Chorus
The law of conservation of mass
states that
matter is neither created nor destroyed
in the course of a chemical reaction;
uh uh uh uh yea eeeee
The law of conservation of mass
states that
matter is neither created nor destroyed
in the course of a chemical reaction;
uh uh uh uh yea eeeee
the total mass of the reactants
is equal to the total mass
of the products. Hmmmmmmm
Verse 2
Hydrogen and oxygen meet,
Forming water clear and sweet.
What goes in comes out the same,
Mass conserved — that’s nature’s game.
Chorus
The law of conservation of mass
states that
matter is neither created nor destroyed
in the course of a chemical reaction;
uh uh uh uh yea eeeee
The law of conservation of mass
states that
matter is neither created nor destroyed
in the course of a chemical reaction;
uh uh uh uh yea eeeee
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📊 Line-by-Line Study Guide
| Lyric Line | Explanation |
|---|---|
| Lavoisier proved with watchful eyes | Antoine Lavoisier demonstrated mass conservation through careful experiments. |
| Matter is neither created nor destroyed | During chemical reactions atoms are rearranged but total mass stays constant. |
| Hydrogen and oxygen meet, forming water | Example reaction: 2H₂ + O₂ → 2H₂O — mass of reactants equals mass of products. |
| Total mass of reactants = total mass of products | Key quantitative statement used to balance chemical equations and perform stoichiometry. |
💡 Mnemonic
"Mass Stays" — Remember: in reactions, mass stays (is conserved) when the system is closed.
❓ Quiz
1. What does the law of conservation of mass state?
2. Who is credited with experimentally establishing this law?
3. In a closed system, if 10 g of reactants react completely, what is the mass of products?
🃏 Flashcards
Q1: State the law of conservation of mass.
Matter is neither created nor destroyed in a chemical reaction; total mass of reactants = total mass of products.
Q2: Give an example reaction illustrating the law.
2H₂ + O₂ → 2H₂O — mass of H₂ and O₂ equals mass of H₂O formed.
Q3: When does the law apply?
Applies in closed systems where no matter enters or leaves during the reaction.
🎯 Drag & Drop
Match the term with its meaning:
Terms
Meanings
Closed system
Reactants
Products
📌 Summary
- The law of conservation of mass: matter is neither created nor destroyed in chemical reactions.
- Established by Lavoisier; essential for balancing equations and stoichiometry.
- Valid for closed systems — track mass of reactants and products to confirm conservation.