Videos
Review of Selected Concepts Related to Nomenclature
Write the chemical formula of each of the following. The blue spheres represent nitrogen atoms and the red spheres oxygen atoms. Oxygen is written last in the formulas that include oxygen.
(a)
Interpretation:
The chemical formula of each of the following is to be written. The blue spheres represent nitrogen atoms and the red spheres oxygen atoms. Oxygen is written last in the formulas that include oxygen.
Concept introduction:
The particle of an element or compound in the written format is denoted by the chemical formulas. The symbols of elements in a particular substance covers the formula of the required substance.
Answer to Problem 1E
The chemical formula of (a) is written as N2
Explanation of Solution
Generally, in a formula, the total number of atoms of the element under study is shown by a subscript number immediately following the symbol. Notably, the subscript does not have the number when only one atom of an element present in the formula. The number of each kind of atom which makes up the particle generally called as the composition, is denoted by the chemical formula. Commonly, elements can be madeup of molecules having single atom, two atoms or complex multi-atoms. Coversely, when the substance itself is an element it should have all atoms of the same element. In the above example (a), the two lobes are having the same blue color which is for the element nitrogen.
Total number of lobes of nitrogen (N) = 2
Chemical formula = N2
Thus, the chemical formula of the colored lobes (a) is written.
(b)
Interpretation:
The chemical formula of each of the following is to be written. The blue spheres represent nitrogen atoms and the red spheres oxygen atoms. Oxygen is written last in the formulas that include oxygen.
Concept introduction:
The particle of an element or compound in the written format is denoted by the chemical formulas. The symbols of elements in a particular substance covers the formula of the required substance.
Answer to Problem 1E
The chemical formula of (b) is written as NO2
Explanation of Solution
Generally, in a formula, the total number of atoms of the element under study is shown by a subscript number immediately following the symbol. Notably, the subscript does not have the number when only one atom of an element present in the formula. In the above example (b), the two lobes are having the same color which is for the element oxygen and one lobe is having the color for nitrogen.
Total number of lobes of nitrogen (N) = 1
Total number of lobes of oxygen (O) = 2
Chemical formula = NO2
Thus, the chemical formula of the colored lobes (b) is written.
(c)
Interpretation:
The chemical formula of each of the following is to be written. The blue spheres represent nitrogen atoms and the red spheres oxygen atoms. Oxygen is written last in the formulas that include oxygen.
Concept introduction:
The particle of an element or compound in the written format is denoted by the chemical formulas. The symbols of elements in a particular substance covers the formula of the required substance.
Answer to Problem 1E
The chemical formula of (c) is written as N2O
Explanation of Solution
Generally, in a formula, the total number of atoms of the element under study is shown by a subscript number immediately following the symbol. Notably, the subscript does not have the number when only one atom of an element present in the formula. In the above example (c), the two lobes are having the same color which is for the element nitrogen and one lobe is having the color for oxygen.
Total number of lobes of nitrogen (N) = 2
Total number of lobes of oxygen (O) = 1
Chemical formula = N2O
Thus, the chemical formula of the colored lobes (c) is written.
(d)
Interpretation:
The chemical formula of each of the following is to be written. The blue spheres represent nitrogen atoms and the red spheres oxygen atoms. Oxygen is written last in the formulas that include oxygen.
Concept introduction:
The particle of an element or compound in the written format is denoted by the chemical formulas. The symbols of elements in a particular substance covers the formula of the required substance.
Answer to Problem 1E
The chemical formula of (d) is written as N2O4
Explanation of Solution
Generally, in a formula, the total number of atoms of the element under study is shown by a subscript number immediately following the symbol. Notably, the subscript does not have the number when only one atom of an element present in the formula. In the above example (d), the two lobes are having the same color which is for the element nitrogen and other four lobes are having the color for oxygen.
Total number of lobes of nitrogen (N) = 2
Total number of lobes of oxygen (O) = 4
Chemical formula = N2O4
Thus, the chemical formula of the colored lobes (d) is written.
Want to see more full solutions like this?
Chapter 6 Solutions
Introductory Chemistry: An Active Learning Approach
- Knowing the number of protons in the atom of a neutral element enables you to determine which of the following? the number of neutrons in the atom of the neutral element the number of electrons in the atom of the neutral element the name of the element two of the above none of the above Explain.arrow_forwardAn isotope of an element contains 63 protons and 91 neutrons. (a) Identify the element and give its symbol. (b) Give the elements atomic number. (c) Give the mass number of the isotope. (d) This element has two naturally occurring isotopes. Given the information in the table, calculate the atomic weight of the element. (e) In which region of the periodic table is the element found? Explain your answer. (f) Is the element a metal, metalloid, or nonmetal? Explain your answer. (g) This element, used in compact fluorescent light bulbs and computer screens, has an atomic radius of 180 pm. Calculate how long the chain of atoms would be if all the atoms in a 1.25-mg sample of this element were put into a row.arrow_forwardWhat are the IUPAC names of the following compounds? manganese dioxide mercurous chloride ( Hg2Cl2) ferric nitrate [Fe( No 3)3] titanium tetrachioride cupric bromide (CuBr2)arrow_forward
- Which of the following is true about an individual atom? Explain. a. An individual atom should be considered to be a solid. b.An individual atom should be considered to be a liquid. c. An individual atom should be considered to be a gas. d. The state of the atom depends on which element it is. e. An individual atom cannot be considered to be a solid, liquid, or gas. Justify your choice, and for choices you did not pick, explain what is wrong with them.arrow_forwardGive the names of the nonmetals that correspond to the following symbols: As, I, Xe, He, C, Si.arrow_forwardThe formula of water is If-O. Which of the following is indicated by this formula? Explain your answer. a. The mass of hydrogen is twice that of oxygen in each molecule. b. There are two hydrogen atoms and one oxygen atom per water molecule. c. The mass of oxygen is twice that of hydrogen in each molecule. d. There are two oxygen atoms and one hydrogen atom per water molecule.arrow_forward
- Why is the term sodium chloride molecule incorrect whereas the term carbon dioxide molecule is correct?arrow_forwardWrite the chemical formula of each of the following: a The compound made up of a crystal with one particle coming from a nickel atom for every two particles coming from chlorine atoms. b The compound made up of a crystal with two particles coming from silver atoms for every one particle coming from an oxygen atom. c The compound made up of molecules with six carbon atoms, 12 hydrogen atoms, and six oxygen atoms. d The compound made up of molecules with two hydrogen atoms, one sulfur atom, and four oxygen atoms.arrow_forwardThe isotope of an unknown element, X, has a mass number of 79. The most stable ion of the isotope has 36 electrons and forms a binary compound with sodium, having a formula of Na2X. Which of the following statements is(are) true? For the false statements, correct them. a. The binary compound formed between X and fluorine will be a covalent compound. b. The isotope of X contains 38 protons. c. The isotope of X contains 41 neutrons. d. The identity of X is strontium, Sr.arrow_forward
- Give three examples of gaseous elements that exist as diatomic molecules. Give three examples of gaseous elements that exist as monatomic species.arrow_forwardWhy is the term “sodium chloride molecule” incorrect but the term “carbon dioxide molecule” is correct?arrow_forwardDraw a formula for each of the following molecules using circular symbols of your choice to represent atoms: a. A diatomic molecule of an element b. A diatomic molecule of a compound c. A triatomic molecule of an element d. A molecule of a compound containing one atom of one element and four atoms of another elementarrow_forward
Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning