Complex Ions in Aqueous Solutions

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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?

coordination number (D) Signup and view all the answers

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

chelates (B) Signup and view all the answers

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

chlorophyll (B) Signup and view all the answers

Which buffer system operates in all tissues and cells?

hydrocarbonate (A) Signup and view all the answers

What is the chemical composition of the protein buffer system?

CH3COONa + CH3COOH (D) 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?

All of the above (D) Signup and view all the answers

Which element causes anthracosis disease?

Si (C) Signup and view all the answers

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

Na va K (D) Signup and view all the answers

Na and K belong to which group of biogenic elements?

s (B) Signup and view all the answers

What does the method of neutralization depend on?

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

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

Oxidimetry (A) Signup and view all the answers

Which method of titrimetric analysis does not use an indicator?

Iodometry (B) Signup and view all the answers

What is a requirement for osmosis to occur?

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

What does Van't Hoff's law determine?

Osmotic pressure indicator (C) Signup and view all the answers

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

The cell bursts (A) Signup and view all the answers

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

53% (C) Signup and view all the answers

Which electrolyte is NOT commonly found in the body?

Ba (C) Signup and view all the answers

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

Equilibrium constant (C) 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?

First law of thermodynamics (C) Signup and view all the answers

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

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

Which enzyme contains copper metal?

All of the above (D) Signup and view all the answers

What type of buffer has an alkaline effect?

Intracellular buffer (A) Signup and view all the answers

What is the characteristic of internal energy?

It is a state function (C) Signup and view all the answers

Which metal is part of which enzymes?

Iron - Oxidase (C) 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?

Second law of thermodynamics (C) 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?

Zero (B) Signup and view all the answers

What type of processes are prohibited for isolated systems?

Processes with negative entropy change (B) Signup and view all the answers