Writing Chemical Formulas And Naming Compounds Quiz
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Write the chemical formula for: aluminum sulfide (Write subscripts can be written as regular numbers.)
About This Quiz
Test your proficiency in Writing Chemical Formulas and Naming Compounds with this concise quiz! Designed to enhance your understanding of chemical nomenclature, the quiz covers essential concepts such as ionic and covalent compounds, polyatomic ions, and rules for naming molecular substances. Challenge yourself with questions requiring the translation of chemical names to formulas and vice versa. Whether you're a student See morebrushing up on fundamentals or a chemistry enthusiast, this quiz offers a quick and insightful assessment of your knowledge of the language of chemistry. Sharpen your skills in constructing and deciphering chemical formulas with this engaging quiz!
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- 2.
Write the chemical formula for: calcium phosphate (Write subscripts as regular numbers.)
Explanation
Calcium phosphate is composed of calcium ions (Ca2+) and phosphate ions (PO43-). The chemical formula Ca3(PO4)2 indicates that there are three calcium ions and two phosphate ions in the compound. The subscript numbers indicate the number of each ion present in the compound.Rate this question:
- 3.
Write the chemical formula for: tin oxide. (Write subscripts as regular numbers.)
Explanation
Tin oxide comes in two common forms based on tin's oxidation states: Tin(II) oxide (SnO) and Tin(IV) oxide (SnOâ‚‚). SnO forms when tin has a +2 charge, while SnOâ‚‚ forms with a +4 charge. These compounds are used in various applications, including ceramics and glassmaking. SnOâ‚‚, also known as stannic oxide, is more stable and widely used, especially in coatings and as a catalyst.Rate this question:
- 4.
Write the chemical formula for: iron(III) sulfate
Explanation
The chemical formula for iron(III) sulfate is Fe2(SO4)3. In this compound, there are two iron atoms (Fe) and three sulfate ions (SO4). The Roman numeral III in parentheses after iron indicates that the iron ion has a +3 charge. The sulfate ion (SO4) has a -2 charge, so three sulfate ions are needed to balance the charge of two iron ions. Therefore, the correct formula is Fe2(SO4)3.Rate this question:
- 5.
Write the chemical formula for: ammonium phosphate.
Explanation
The valence number for NH4 is +1. The valence number for PO4 is -3, so 3 ammonium ions are needed to balance the charge of the phosphate ion.Rate this question:
- 6.
Write the name of: AlCl3
Explanation
AlCl3 is the chemical formula for aluminum chloride. It is composed of one aluminum ion and three chlorine ions. Aluminum chloride is a white, crystalline solid that is highly soluble in water. It is commonly used as a catalyst in various chemical reactions and as an ingredient in antiperspirants. The name "aluminum chloride" accurately describes the compound's composition, consisting of aluminum and chlorine elements.Rate this question:
- 7.
Write the name of: Mg3(PO4)2
Explanation
The name "magnesium phosphate" is the correct answer because Mg3(PO4)2 is a chemical formula that represents a compound containing magnesium (Mg) and phosphate (PO42-) ions. In this compound, there are three magnesium ions (3Mg2+) and two phosphate ions (PO4) present. Therefore, the name "magnesium phosphate" accurately describes the composition of this compound.Rate this question:
- 8.
Write the name of: Sn3(PO4)2
Explanation
The correct answer is tin(II) phosphate because Sn3(PO4)2 is a chemical formula that represents a compound made up of tin (Sn2+) and phosphate (PO43+) ions. The compound is named using the rules of chemical nomenclature, where the cation (tin) is named first, followed by the anion (phosphate). The Roman numeral II in parentheses following Sn indicates that the Sn cations have a 2+ charge. Hence, the name "tin phosphate" accurately represents the composition of the compound.Rate this question:
- 9.
Write the name of: NH4ClO3
Explanation
NH4ClO3 is the chemical formula for ammonium chlorate. It is composed of one ammonium ion (NH4+) and one chlorate ion (ClO3-). The name "ammonium chlorate" accurately represents the composition of the compound, with "ammonium" referring to the ammonium ion and "chlorate" referring to the chlorate ion.Rate this question:
- 10.
Write the formula of: carbon disulfide
Explanation
The formula for carbon disulfide is CS2. In this compound, there is one carbon atom bonded to two sulfur atoms. The subscript 2 indicates that there are two sulfur atoms present in the molecule.Rate this question:
- 11.
Write the formula of: sulfur hexafluoride
Explanation
The chemical formula for sulfur hexafluoride is SF6. In this compound, sulfur (S) forms a covalent bond with six fluorine (F) atoms, resulting in the molecular formula SF6.Rate this question:
- 12.
Write the name of: Cl2O7
Explanation
The correct name for the compound Cl2O7 is dichlorine heptoxide. Chlorine and oxygen are both nonmetals, indicating that this is a covalently bonded molecule. The prefix "di-" indicates that there are two chlorine atoms, and the prefix "hept-" indicates that there are seven oxygen atoms. The suffix "-oxide" indicates that the compound contains oxygen. Therefore, the name "dichlorine heptoxide" accurately describes the composition of the compound.Rate this question:
- 13.
Write the name of: P2O5
Explanation
The correct name for P2O5 is diphosphorus pentoxide. This is because the compound consists of two phosphorus atoms (di- meaning two) and five oxygen atoms (penta- meaning five) in a covalently bonded compound composed of nonmetals. The name is written as a single word without spaces or hyphens.Rate this question:
- 14.
True or False: Ionic compounds require the use of prefixes to indicate the number of each kind of atom. Covalent compounds do not require prefixes.
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True
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False
Correct Answer
A. FalseExplanation
Ionic compounds do not require the use of prefixes to indicate the number of each kind of atom. In ionic compounds, the atoms combine in fixed ratios determined by their charges, so the number of each kind of atom is already indicated by the formula. On the other hand, covalent compounds, which are formed by the sharing of electrons between atoms, require the use of prefixes to indicate the number of each kind of atom in the molecule.Rate this question:
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- 15.
True or False: Metals tend to give away electrons during ionic bonding. Nonmetals tend to accept electrons during ionic bonding.
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True
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False
Correct Answer
A. TrueExplanation
Metals tend to give away electrons during ionic bonding because they have fewer valence electrons and a lower electronegativity. This allows them to easily lose electrons and form positive ions. On the other hand, nonmetals tend to accept electrons during ionic bonding because they have more valence electrons and a higher electronegativity. This enables them to gain electrons and form negative ions. Therefore, the statement that metals give away electrons and nonmetals accept electrons during ionic bonding is true.Rate this question:
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Current Version
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Oct 16, 2024Quiz Edited by
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Expert Reviewed by
Zohra Sattar Waxali -
Jan 23, 2018Quiz Created by
Milton Harris
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