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
Bundle: Introductory Chemistry: An Active Learning Approach, 6th + OWLv2, 1 term (6 months) Printed Access Card
- The table shows the tensile stress-strain values obtained for various hypothetical metals. Based on this, indicate which is the most brittle and which is the most tough (or most resistant). Breaking strength Elastic modulus Material Yield strength Tensile strength Breaking strain A (MPa) 415 (MPa) (MPa) (GPa) 550 0.15 500 310 B 700 850 0.15 720 300 C Non-effluence fracture 650 350arrow_forwardPlease correct answer and don't used hand raitingarrow_forwardMaterials. The following terms are synonyms: tension, effort and stress.arrow_forward
- Please correct answer and don't used hand raitingarrow_forwardPlease correct answer and don't used hand raitingarrow_forwardThe table shows the tensile stress-strain values obtained for various hypothetical metals. Based on this, indicate which material will be the most ductile and which the most brittle. Material Yield strength Tensile strength Breaking strain Breaking strength Elastic modulus (MPa) (MPa) (MPa) (GPa) A 310 340 0.23 265 210 B 100 120 0.40 105 150 с 415 550 0.15 500 310 D 700 850 0.14 720 210 E - Non-effluence fracture 650 350arrow_forward
- Please correct answer and don't used hand raiting and don't used Ai solutionarrow_forwardPlease correct answer and don't used hand raitingarrow_forwardConsider the following Figure 2 and two atoms that are initially an infinite distance apart, x =00, at which point the potential energy of the system is U = 0. If they are brought together to x = x, the potential energy is related to the total force P by dU dx = P Given this, qualitatively sketch the variation of U with x. What happens at x=x? What is the significance of x = x, in terms of the potential energy? 0 P, Force 19 Attraction Total Repulsion x, Distance Figure 2. Variation with distance of the attractive, repulsive, and total forces between atoms. The slope dP/dx at the equilibrium spacing xe is proportional to the elastic modulus E; the stress σb, corresponding to the peak in total force, is the theoretical cohesive strength.arrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning