Complex Ions in Aqueous Solutions

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Questions and Answers

What is the name of the complex compound if it has a negative charge?

  • neutral
  • cationic
  • anionic (correct)
  • acid complex

What kind of particles can act as a ligand in anionic complexes?

  • neutral polar molecule
  • metal ion or ammonium ion
  • a non-metallic atom
  • acid residue or hydroxide group (correct)

What kind of particles can be in the outer sphere of anionic complexes?

  • a non-metallic atom
  • metal ion or ammonium ion
  • acid residue
  • neutral polar molecule (correct)

What is the name of the number of ligands in a complex compound?

<p>coordination number (D)</p> Signup and view all the answers

What are ring complexes called that are sometimes formed in the formation of a complex compound?

<p>chelates (B)</p> Signup and view all the answers

What is the name of the substance that belongs to the type of chelates in the complexes?

<p>chlorophyll (B)</p> Signup and view all the answers

Which buffer system operates in all tissues and cells?

<p>hydrocarbonate (A)</p> Signup and view all the answers

What is the chemical composition of the protein buffer system?

<p>CH3COONa + CH3COOH (D)</p> Signup and view all the answers

What is the process that reflects the mechanism of buffer action when adding OH- ions to a protein buffer solution?

<p>All of the above (D)</p> Signup and view all the answers

Which element causes anthracosis disease?

<p>Si (C)</p> Signup and view all the answers

What biogenic elements are involved in maintaining the constant osmotic pressure?

<p>Na va K (D)</p> Signup and view all the answers

Na and K belong to which group of biogenic elements?

<p>s (B)</p> Signup and view all the answers

What does the method of neutralization depend on?

<p>Type of reagent used as a working solution (D)</p> Signup and view all the answers

Which titrimetric analysis method is based on oxidation-reduction reactions?

<p>Oxidimetry (A)</p> Signup and view all the answers

Which method of titrimetric analysis does not use an indicator?

<p>Iodometry (B)</p> Signup and view all the answers

What is a requirement for osmosis to occur?

<p>Two-way diffusion between the solution and the solvent (C)</p> Signup and view all the answers

What does Van't Hoff's law determine?

<p>Osmotic pressure indicator (C)</p> Signup and view all the answers

What happens when a cell is placed in a hypotonic solution?

<p>The cell bursts (A)</p> Signup and view all the answers

What percentage of the total buffer effect of blood is accounted for by the cell and tissue buffer?

<p>53% (C)</p> Signup and view all the answers

Which electrolyte is NOT commonly found in the body?

<p>Ba (C)</p> Signup and view all the answers

What is the term for the dissociation equilibrium constant of a complex compound?

<p>Equilibrium constant (C)</p> Signup and view all the answers

What is the concept that states that energy cannot be created or destroyed, only converted from one form to another?

<p>First law of thermodynamics (C)</p> Signup and view all the answers

What is the result of a system being in thermal equilibrium with another system?

<p>They are in thermal equilibrium with each other (A)</p> Signup and view all the answers

Which enzyme contains copper metal?

<p>All of the above (D)</p> Signup and view all the answers

What type of buffer has an alkaline effect?

<p>Intracellular buffer (A)</p> Signup and view all the answers

What is the characteristic of internal energy?

<p>It is a state function (C)</p> Signup and view all the answers

Which metal is part of which enzymes?

<p>Iron - Oxidase (C)</p> Signup and view all the answers

What is the concept that states that heat cannot pass voluntarily from a less heated body to a more heated body?

<p>Second law of thermodynamics (C)</p> Signup and view all the answers

What is the entropy of a pure substance in the form of an ideal crystal at absolute zero temperature?

<p>Zero (B)</p> Signup and view all the answers

What type of processes are prohibited for isolated systems?

<p>Processes with negative entropy change (B)</p> Signup and view all the answers

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