A small amount of methanol (CH,OH) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.) D CH,OH H,O solution Use these sketches to answer the questions in the table below.
A small amount of methanol (CH,OH) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.) D CH,OH H,O solution Use these sketches to answer the questions in the table below.
Introductory Chemistry: An Active Learning Approach
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Chapter2: Matter And Energy
Section: Chapter Questions
Problem 83E: Particles in the illustration below undergo a chemical change. Which among the remaining boxes, a...
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States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
Transcribed Image Text:A small amount of methanol (CH,OH) is dissolved in a large amount of water. Imagine separating this process into the four stages
sketched below. (These sketches show only a portion of the substances, so you can see the density and distribution of atoms and
molecules in them.)
В
CH, ОН
H,0
solution
Use these sketches to answer the questions in the table below.
Transcribed Image Text:The enthalpy of solution AH
soln
is positive when
CH3OH dissolves in water. Use this information to
list the stages in order of increasing enthalpy.
absorbed
Would heat be absorbed or released if the system
moved from Stage C to D?
released
neither absorbed nor released
none
ionic bonding force
covalent bonding force
metal bonding force
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
O hydrogen-bonding force
dipole force
ion-dipole force
dispersion force
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