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Ch. 2 - Biochemistry Basics
Norman-McKay- Microbiology: Basic and Clinical Principles 2nd Edition
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoNorman-McKay 2nd EditionCh. 2 - Biochemistry BasicsProblema 2
Capitolo 1, Problema 2

What ions result when hydrogen donates one electron to fluorine?

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1
Identify the elements involved: hydrogen (H) and fluorine (F). Hydrogen has one electron, and fluorine has seven electrons in its outer shell.
Understand the electron transfer: when hydrogen donates one electron, it loses an electron and becomes a positively charged ion (cation).
Determine the ion formed by hydrogen after losing an electron: it becomes a hydrogen ion, represented as \(\mathrm{H}^{+}\).
Determine the ion formed by fluorine after gaining one electron: it gains an electron to complete its outer shell, becoming a negatively charged ion (anion), represented as \(\mathrm{F}^{-}\).
Conclude that the ions resulting from this electron transfer are \(\mathrm{H}^{+}\) (hydrogen ion) and \(\mathrm{F}^{-}\) (fluoride ion).

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Ionic Bond Formation

Ionic bonds form when one atom donates electrons to another, resulting in oppositely charged ions that attract each other. In this process, the donor atom becomes a positively charged ion (cation), and the acceptor becomes a negatively charged ion (anion).
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Ionic Bonds

Electron Transfer Between Hydrogen and Fluorine

When hydrogen donates one electron to fluorine, hydrogen loses an electron and becomes a hydrogen ion (H⁺), while fluorine gains an electron and becomes a fluoride ion (F⁻). This electron transfer leads to the formation of ions with opposite charges.
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Hydrogen Bonding

Charge and Ion Notation

Ions are represented with their chemical symbol followed by a superscript indicating their charge. For example, H⁺ indicates a hydrogen ion with a positive charge, and F⁻ indicates a fluoride ion with a negative charge, reflecting the gain or loss of electrons.
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Ionic Bonding
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Determine the following:

a. The molarity of a solution with 0.5 moles of glucose per liter of water.

b. The concentration (in weight/volume percent) of a solution that contains 20 grams of sodium chloride per liter of water.

c. The concentration (in mg/dL) of a solution with 1 gram of lactic acid per 100 mL of solution.

d. The molarity of a solution with 1 mmol of solute in 1 L of water.

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Domanda del libro di testo

Using the periodic table, answer the following questions:

a. What is the atomic number for lithium (Li)?

b. What is the atomic mass of oxygen (O)?

c. What is the chemical symbol for potassium?

d. How many protons does nitrogen have?

e. How many neutrons does lead have?

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Domanda del libro di testo

Select all of the compounds from the following list. If it is not a compound, then state what it is.

a. H2O

b. HCO3-

c. O2

d. H2

e. Li2+

f. C6H12O6

g. H+

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Domanda del libro di testo

Select the false statement about salts.

a. Salts are ionic compounds.

b. Salts are formed when an acid and a base react with each other.

c. Salts consist of an anion and a cation component.

d. Salts may be inorganic.

e. Salts are usually acids.

f. Salts are usually hydrophilic.

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