ESAS · Question Bank

Chemistry

340 of 345 questions match · page 15 of 17. Answer in your head first, then check the solution.

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#281📘 reviewer_appEasy
What are colloidal dispersions of gas bubbles in liquids or solids?
AEmulsions
BAerosols
CFoams
DSols
#282📘 reviewer_appEasy
What is a colloidal dispersion of a liquid in either a liquid or a solid?
AEmulsions
BGels
CFoams
DSols
#283📘 reviewer_appEasy
What is a solid dispersed in either a solid or a liquid?
AEmulsions
BGels
CFoams
DSols
#284📘 reviewer_appEasy
What is a colloidal system in which the dispersed phase consists of fibrous, interwoven particles called fibrils which exert a marked effect on the physical properties of the dispersing medium?
AEmulsions
BGels
CFoams
DSols
#285📘 reviewer_appEasy
Most cosmetics and ointments and creams used in medicines are _______
Aemulsions
Bgels
Cfoams
Dsols
#286📘 reviewer_appEasy
"Upon dissociation in water, acids yield hydrogen ions while gases yield hydroxide ions". What is this statement commonly called?
AArrhenius theory
BpH concept
CBronsted - Lowry theory
DLe Chatelier's principle
#287📘 reviewer_appEasy
What is defined as a substance which, upon reaction with water, causes an increase in the concentration of the solvent cation, \( H_3O^+ \)?
ALewis acid
BLewis base
CArrhenius base
DArrhenius acid
#288📘 reviewer_appEasy
What is defined as a substance which, upon dissolution in or reacting with water causes an increase in the concentration of the solvent anion, \( OH^- \)?
ALewis acid
BLewis base
CArrhenius base
DArrhenius acid
#289📘 reviewer_appEasy
What is the dissolution constant of water at \( 25^\circ C \)?
A1.\( 8 \\times \(10^{-15}\) \)
B1.\( 8 \\times \(10^{-16}\) \)
C1.\( 8 \\times \(10^{-17}\) \)
D1.\( 8 \\times \(10^{-18}\) \)
#290📘 reviewer_appEasy
What theory states that an acid is any substance that donates a proton to another substance, and a base is any substance that can accept a proton from any other substance?
AArrhenius theory
BBronsted-Lowry theory
CLewis theory
DpH concept
#291📘 reviewer_appEasy
What theory states that an acid is a substance that can accept a lone pair from another molecule, and a base is a substance that has a lone pair of electrons?
AArrhenius theory
BBronsted-Lowry theory
CLewis theory
DpH concept
#292📘 reviewer_appEasy
An acid described as an electron pair acceptor is the ________ acid
AArrhenius
BPure
CLewis
DBronsted-Lowry
#293📘 reviewer_appEasy
The Bronsted-Lowry acid is:
Aa proton donor
Ba proton acceptor
Can electron pair acceptor
Dan electron pair donor
#294📘 reviewer_appEasy
The Bronsted-Lowry base is:
Aa proton donor
Ba proton acceptor
Can electron pair acceptor
Dan electron pair donor
#295📘 reviewer_appEasy
According to Gilbert Lewis, an acid-base reaction as the sharing of an electron pair will form what type of bond?
ACoordinate ionic bond
BCoordinate covalent bond
CCoordinate metallic bond
DCoordinate bond
#296📘 reviewer_appEasy
What is the type of covalent bond in which the shared electrons are donated by one, of the atoms involved?
Asynchronous covalent bond
Bcoordinated covalent bond
Casynchronous covalent bond
Dtranslating covalent bond
#297📘 reviewer_appEasy
What is the term used for the product of a Lewis acid-base reaction?
AOxyacids
BBinary acid
CAcibas
DAdduct
#298📘 reviewer_appEasy
Acids composed of only two elements, hydrogen and nonmetal, are called ________
Abinary acids
Bternary acids
Coxyacids
Dorganic acids
#299📘 reviewer_appEasy
What is added to hydrochloride to form hydrochloric acid
AOxygen
BSulfur
CWater
DCarbon
#300📘 reviewer_appEasy
Acids consists of three elements, hydrogen and two nonmetals are called _______
ATriacids
BTernary acids
COxyacids
DOrganic acids

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