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Questions and Answers
What is the correct chemical formula for sulfur hexafluoride?
What is the correct chemical formula for sulfur hexafluoride?
How is nitrogen dioxide represented in chemical formula?
How is nitrogen dioxide represented in chemical formula?
What is the prefix used to indicate three atoms of an element in a chemical formula?
What is the prefix used to indicate three atoms of an element in a chemical formula?
Which of the following correctly identifies the chemical formula for dinitrogen pentoxide?
Which of the following correctly identifies the chemical formula for dinitrogen pentoxide?
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What is the correct way to write the formula for dioxygen difluoride?
What is the correct way to write the formula for dioxygen difluoride?
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Which of the following correctly describes the order of elements in an ionic compound's formula?
Which of the following correctly describes the order of elements in an ionic compound's formula?
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What is the correct formula for ammonium nitrate?
What is the correct formula for ammonium nitrate?
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Which of the following statements about covalent compounds is accurate?
Which of the following statements about covalent compounds is accurate?
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What is the correct way to represent calcium sulfate in a chemical formula?
What is the correct way to represent calcium sulfate in a chemical formula?
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Which of the following compounds is a covalent compound?
Which of the following compounds is a covalent compound?
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What is required for the subscripts in a chemical formula of an ionic compound?
What is required for the subscripts in a chemical formula of an ionic compound?
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Which of the following is true regarding the naming of non-metal anions?
Which of the following is true regarding the naming of non-metal anions?
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If there is more than one polyatomic ion in a chemical formula, how should it be represented?
If there is more than one polyatomic ion in a chemical formula, how should it be represented?
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Study Notes
Ionic and Covalent Compounds
- Ionic compounds are formed by a metal and a nonmetal
- Covalent compounds are formed by nonmetals sharing electrons
- The cation is written first, followed by the anion
- Subscripts in the formula must create an electrically neutral formula unit
- Subscripts should be the smallest whole numbers possible
- If a polyatomic ion appears more than once in the formula, enclose it in parentheses and list the subscript after the parentheses
- The nonmetal ions are usually named by the element name and changing the ending to -ide (e.g., oxygen-oxide)
- Prefixes are used to indicate the number of atoms of each element present in a compound (mono=1, di=2, tri=3, tetra=4, penta=5, hexa=6, hepta=7, octa=8, nona=9, deca=10)
Examples of Ionic Compounds
- Lithium
- Calcium
- Aluminum
- Oxygen
- Sulfur
- Phosphorus
Examples of Covalent Compounds
- chlorine trifluoride
- phosphorus pentachloride
- sulfur dioxide
- dinitrogen pentoxide
- nitrogen dioxide
- dioxygen difluoride
- sulfur hexafluoride
- selenium monoxide
- Calcium Carbide
- Mercuric Cyanide
- Calcium Hydroxide
- Sodium Hydroxide
- Ammonium Thiosulfate
- Ammonium Oxide
- Calcium Oxide
- Calcium Sulfate
- Sodium oxide
- Calcium Chloride
- Magnesium nitrate
- Iron (III) sulfide/ Ferric sulfide
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Description
This quiz explores the formation and naming conventions of ionic and covalent compounds. It covers key principles such as the arrangements of cations and anions, the use of subscripts, and the naming of compounds based on elemental prefixes. Test your knowledge on both types of chemical bonding and their characteristics.
