
Concept explainers
(a)
Interpretation:
Whether the representative particle in acetone is an atom, formula unit or molecule is to be stated.
Concept introduction:
The covalent bond is formed when two non-metals are combined by sharing the valence electrons. The particle that is held together by a covalent bond is known as a molecule. This can be identified when there are two non-metals in an atom.
(b)
Interpretation:
Whether the representative particle in cobalt is an atom, formula unit or molecule is to be stated.
Concept introduction:
The atom is the basic unit of a particle that cannot be broken by any chemical means. The atom shows the property of an element. Every state is composed of a neutral or an ionized atom.
(c)
Interpretation:
Whether the representative particle in magnetite is an atom, formula unit or molecule is to be stated.
Concept introduction:
In an ionic bond, the cation is attracted to an anion. This attraction is due to the opposite charges on both the ions. The particle that is held together by an ionic bond is known as formula unit. This can be identified when the particle has a metal and a non-metal.
(d)
Interpretation:
Whether the representative particle in phosphorus is an atom, formula unit or molecule is to be stated.
Concept introduction:
The covalent bond is formed when two non-metals are combined by sharing the valence electrons. The particle that is held together by a covalent bond is known as a molecule. This can be identified when there are two non-metals in an atom.

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Chapter 12 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- SYNTHESIS REACTIONS. For the following reactions, synthesize the given products from the given reactants. Multiple reactions/steps will be needed. For the one of the steps (ie reactions) in each synthesis, write out the mechanism for that reaction and draw an energy diagram showing the correct number of hills and valleys for that step's mechanism. CI b. a. Use acetylene (ethyne) and any alkyl halide as your starting materials Br C. d. "OH OH III. OHarrow_forwardCalculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely: (a) 0.200 M HClarrow_forwardCalculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely: (a) 0.000259 M HClO4arrow_forward
- What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardDetermine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. NaN₃arrow_forwardCan I please get help with this?arrow_forward
- Can I please get help with this?arrow_forwardUse the Henderson-Hasselbalch equation to calculate pH of a buffer containing 0.050M benzoic acidand 0.150M sodium benzoate. The Ka of benzoic acid is 6.5 x 10-5arrow_forwardA. Draw the structure of each of the following alcohols. Then draw and name the product you would expect to produce by the oxidation of each. a. 4-Methyl-2-heptanol b. 3,4-Dimethyl-1-pentanol c. 4-Ethyl-2-heptanol d. 5,7-Dichloro-3-heptanolarrow_forward
- What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardCan I please get help with this.arrow_forwardDetermine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. N₂H₅ClO₄arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
