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Questions and Answers
What does the 2 mean in the formula $5Mg_3(PO_4)_2$?
What does the 2 mean in the formula $5Mg_3(PO_4)_2$?
What is the chemical formula for the molecule modeled?
What is the chemical formula for the molecule modeled?
C6H12O2
What mistake did Carl make when determining the number of atoms in the formula $4Ca(ClO_3)_2$?
What mistake did Carl make when determining the number of atoms in the formula $4Ca(ClO_3)_2$?
He did not multiply the chlorine and oxygen atoms by the coefficient 4.
A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.
A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.
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In what way is Model B better than Model A?
In what way is Model B better than Model A?
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In what way is Model A better than Model B?
In what way is Model A better than Model B?
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Which of these is a compound?
Which of these is a compound?
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Study Notes
Magnesium Phosphate
- Chemical formula: Mg3(PO4)2
- Contains magnesium and phosphate ions
- Phosphate (PO4) acts as a charged particle
- The subscript '2' indicates two phosphate ions per molecule
Chemical Modeling
- Example molecule formula: C6H12O2
- Various methods exist to model compounds
Common Mistake in Chemical Calculations
- Issue in interpreting 4Ca(ClO3)2:
- Chlorine and oxygen atoms must be multiplied by the coefficient '4'
- Incorrect counting leads to errors in atom tally
Pure Substances
- A compound is classified as a pure substance
- Cannot be separated into simpler substances using physical means
Comparison of Molecular Models
- Model B advantage:
- Clearly shows connections between atoms in the molecule
- Model A advantage:
- Represents the three-dimensional shape of the molecule
Identification of Compounds
- Example of a compound: CO2
- Distinguishing between compounds and other substances is important in chemistry
Studying That Suits You
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Description
Test your knowledge of chemical compounds with these flashcards. Learn about the structure and formulas of compounds such as magnesium phosphate. Perfect for students preparing for chemistry exams.
