Podcast
Questions and Answers
What is the correct approach to reduce subscripts in the final chemical formula when combining a metal and a polyatomic ion?
What is the correct approach to reduce subscripts in the final chemical formula when combining a metal and a polyatomic ion?
- Change the subscript of the metal ion only.
- Change the subscript of the polyatomic ion inside the brackets.
- Always double the subscripts for accuracy.
- Never change a subscript in the polyatomic ion. (correct)
When crisscrossing ionic charges between a metal and a polyatomic ion, what happens to the subscripts in the final formula?
When crisscrossing ionic charges between a metal and a polyatomic ion, what happens to the subscripts in the final formula?
- They can be simplified if possible. (correct)
- They are multiplied by two.
- They remain the same as the original charges.
- They are replaced by the charge of the metal ion.
Which of the following correctly describes how to write the formula for dinitrogen tetroxide?
Which of the following correctly describes how to write the formula for dinitrogen tetroxide?
- N2O4 (correct)
- H2N4O
- N4O2
- N2O2
In a chemical reaction, what is the role of balancing equations?
In a chemical reaction, what is the role of balancing equations?
What is the formula for the combustion of a hydrocarbon?
What is the formula for the combustion of a hydrocarbon?
What is the main characteristic that distinguishes a chemical change from a physical change?
What is the main characteristic that distinguishes a chemical change from a physical change?
Which of the following is an example of a physical property?
Which of the following is an example of a physical property?
Which step is essential when writing the formula for a compound formed between lithium and sulfur?
Which step is essential when writing the formula for a compound formed between lithium and sulfur?
What would you observe if a chemical change occurred?
What would you observe if a chemical change occurred?
Which group in the periodic table does not form ions?
Which group in the periodic table does not form ions?
What is the first step in writing the formula for an ionic compound?
What is the first step in writing the formula for an ionic compound?
Which of the following describes a polyatomic ion?
Which of the following describes a polyatomic ion?
What rules should be followed when writing the formula for compounds that include polyatomic ions?
What rules should be followed when writing the formula for compounds that include polyatomic ions?
Flashcards
Synthesis reaction
Synthesis reaction
A reaction that involves the combining of two or more substances to form a single product.
Decomposition reaction
Decomposition reaction
A reaction that involves the breakdown of a single reactant into two or more products.
Single replacement reaction
Single replacement reaction
A reaction that involves the replacement of a metal in a compound by a more reactive metal or a non-metal in a compound by a more reactive non-metal.
Double replacement reaction
Double replacement reaction
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Combustion reaction
Combustion reaction
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Physical Change
Physical Change
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Chemical Change
Chemical Change
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Physical Properties
Physical Properties
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Chemical Properties
Chemical Properties
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Covalent Bonding
Covalent Bonding
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Polyatomic Ions
Polyatomic Ions
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Ionic Compound
Ionic Compound
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Naming Ionic Compounds
Naming Ionic Compounds
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