Concept explainers
Interpretation:
Among the given options, the charge of polyatomic thiocyanate ions in
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions: Ionic compounds containing positive and negative charges present and those must add to get resultant charges as zero. If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclosed in parentheses and a subscript, placed outside of the parenthesis.
Example-
Sometimes same element is present in two different locations. For example,
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Chapter 4 Solutions
General, Organic, and Biological Chemistry
- The correct name for the binary ionic compound Cu2S is a. copper sulfide b. copper(I) sulfide c. copper(II) sulfide d. no correct responsearrow_forwardHow many electrons are required to equal the mass of one proton? a. 1 b. 23 c. about 1800 d. no correct responsearrow_forwardWhich of the following statements about polyatomic ions is correct? a. All must contain oxygen. b. All must carry a negative charge. c. All have names that end in -ide. d. no correct responsearrow_forward
- Which of the following element-classification pairings is incorrect? a. 7Nrepresentative element b. 26Fetransition element c. 75Reinnertransition element d. no correct responsearrow_forwardThe atomic mass of C is 12.01 amu and that of O is 16.00 amu. The formula mass for the compound CO2 is: a. 28.01 amu b. 44.01 amu c. 56.02 amu d. no correct responsearrow_forwardWhich of the following elements would have the same number of valence electrons as 7N? a. 6C b. 8O c. 15P d. no correct responsearrow_forward
- Covalent bond formation most often involves electron sharing between a. two nonmetal atoms b. a metal atom and a nonmetal atom c. a metal atom and a noble-gas atom d. no correct responsearrow_forwardThe element chlorine, which has two isotopic forms, has an atomic mass of 35.5 amu. This means that a. all chlorine atoms have a mass of 35.5 amu b. some, but not all chlorine atoms have a mass of 35.5 amu c. no chlorine atoms have a mass of 35.5 amu d. no correct responsearrow_forwardThe correct chemical symbol for the element beryllium, which contains the first two letters of the elements name, is a. be b. Be c. BE d. no correct responsearrow_forward
- What is the atomic mass of a hypothetical element that exists in two isotopic forms that have masses of 8.00 amu and 10.00 amu, respectively, and percent abundances of 80.00% and 20.00%, respectively? a. 8.40 amu b. 9.00 amu c. 9.20 amu d. no correct responsearrow_forwardWhich of the following is a correct description of the structure of the ionic compound NaCl? a. Alternating layers of Na+ and Cl ions are present. b. Individual molecules containing Na+ and Cl ions are present. c. Each ion present is surrounded by six ions of opposite charge. d. no correct responsearrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning