Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Concept explainers
Electron Affinity
When an element undergoes a chemical reaction, it either gains energy or loses energy. This gain or loss of energy is due to the phenomena that occur at atomic level. During reaction, atoms either gain electrons from other atoms or lose electrons to other atoms, and in that process, energy is produced.
P-Block Elements
Elements which are present on the right side of the periodic table are called p-block elements. In addition to the noble gases, they include the families of boron, mercury, nitrogen, oxygen and fluorine. These elements have diverse real-life implementations that we regularly experience around us.
Metals and Non-metals
The periodic table is composed of metals, semi-metals and nonmetal elements. The physical and chemical properties of metals and nonmetals differ from each other. The study of metals and nonmetals will help one to understand the appropriate application of the particular element.
Question
Please do question 6a and if you to ptable.com you will see the periodic table… please dont return the question
Transcribed Image Text:Bat inghl Beast
Bo
-60%
Sur
100'e/2600%
Cond
w/
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o°c, 1400'%/-92
0°c,1400%
Heat
4.2 1.8
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BL ear Cpapue Clear
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oe
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Transcribed Image Text:三= ==
1 1
Property:
Why it is Important for Life:
surface tension of water is about 72mN/m at room
temperature.it is one
the surface tension arises due to cohesive interactions
between the water molecules.the water molecule has two
hydrogen bond and one covalent bond with oxygen.this
causes electrostatic attraction between the hydrogen and
oxygen which lead to strong cohesive forces between the
water moleculles. The stronger the cohesive force, the
stronner.the.Sudace.tension.
Due to the presence of Hydrogen bonds in water molecules.
It requires more energy to break its hydrogen bond. Thus
possess a high boiling point (100c). This is important for
aquatic speces and to the environment also.if water is easily
boiled or freeze, then any changes in environment would
affect the water bodies and aquatic aquacculture, making it
difficult for living.
Sufaca tenion
the highest surface tension for liquid
Baling and froazing
sUcd
Pdlar mdocules
water has two hydrogen atoms and one oxygen atom.water
is polar molecule because oxygen and hydrogen have
different electronegativity values.the Oxygen has a partial
negative charge and hydrogen has a partial positive charge it
makes the water molecule polar.
Oxygen has two lone pairs of electrons that repel each other
and the electrons bonded to the hydrogen atoms this gves
the water molecules a bent shape.water has 2 bonds and 2
lone pairs. The H-O-H bond angle is 104.5 degrees.
shapo'structuro
The electrostatic dipole dipole interaction between water
molecules is caled hydrogen bond.The transient hydrogen
bonds between water molecules form a transparent,
colorless, odourless liquid.
Transparont
6a. Complete the table below using the periadic table at this link. Drag the elements that are
In the compound that you are investigating into the central square and then scroll the list of
compounds to the left unt you find the ones you are investigating, Click on the link to learn
more about the propertiles of the compound.
Add properties we have agreed are Important to investigate to the"Properties" column. Feel
free to add oather properties you notice that you think might be important. Then complete
the table for each compound using the Information from the website.
Property
Compound 1:
Compound 2:
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