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Lownsberry- VSEPR, Lewis dot, polarity, soap Flashcards | StudBud
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Lownsberry- VSEPR, Lewis dot, polarity, soap
Lownsberry- VSEPR, Lewis dot, polarity, soap
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3D structures, Lewis Dot and periodic table, Polarity, Soap
Flashcards
29 cards
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Questions
29
Answers
1
The highest electronegative element on the periodic table is Francium
True
False
2
As you go down a family of NONMETALS, the reactivity increases(not on polarity test)
True
False
3
The most reactive alkaline metal in the lab that we did was...? (not on polarity test)
Ba
Mg
Ca
Sr
4
How many valence electrons does a lithium atom have?
4
2
1
3
5
What 3D structure will NH
3
form?
angular/bent planar
linear
pyramidal
trigonal planar
6
What compounds are needed to make soap?
NaOH and ethanol
NaOH, oil, and ethanol
none of these
NaOH
7
What is hard water?
water with Ca and Mg ions
all are correct
leaves a residue on shower doors and curtains
makes scum with soap
8
What is the angle of an angular/bent planar molecule?
109.5
120
180
9
Which family forms a trigonal planar 3D structure?
Halogen
alkali
alkaline
Boron
10
What is adhesion?
like molecules are attracted to each other
different molecules are attracted to each other
allows mosquitos to rest on water
11
The tendency of an atom to gain an electron is called _____
prosperity
ionization
exceptionality
electronegativity
12
The Halogen family forms which 3D structure?
Linear
Angular
Trigonal planar
Tetrahedral
13
The energy needed to knock an electron away from an atom is called _____.(not on polarity test)
Activation
Ionization
Potential
Electronegativity
14
What is a wetting agent?
increases adhesion
different molecules are attracted to each other
like molecules are attracted to each other
allows mosquitoes to rest on top of water
15
What is cohesion?
doesn't allow mosquitoes to reston top of water
increases adhesion
different molecules are attracted to each other
like molecules are attracted to each other
16
Is Br
2
a polar or nonpolar molecule?
Polar
nonpolar
17
What type of substance will a polar substance dissolve?
ionic
ionic and polar
polar
nonpolar
18
Which bond is created by sharing electrons?
Ionic
covalent
19
What is surface tension?
created by adhesion and allows mosquitos to rest on water
created by cohesion and allows mosquitos to rest on water
20
Which of the following is a characteristic of an ionic bond?
made with a metal and nonmetal
low melting point
made with nonmetals
shares electrons
21
Is NH
3
polar or nonpolar?
nonpolar
polar
22
What two 3D structures are Always Polar?
linear and pyramidal
pyramidal and tetrahedral
pyramidal and angular/bent planar
angular/bent planar and tetrahedral
23
How do the molecules of oil and water align when soap is added to the test tube?
polar end of soap attaches to water,NP end attaches to oil
the polar end of soap lines up with the nonpolar end of oil
nonpolar end of soap lines up with the polar end of oil
24
What type of substance would dissolve a nonpolar substance?
polar
ionic
nonpolar
25
What is a valence electron?
an electron in the outermost energy level
an electron that absorbs energy
an electron near the nucleus of an atom
an electron that releases energy
26
An anion is a positively charged particle?
False
True
27
Which of the following is an ionic compound?
NaCl
CO
H2O
CH4
28
The Carbon family will form what 3D structure?
Trigonal Planar
Tetrahedral
Linear
Pyramidal
29
What happens when HCl is delivered from a burette in the presence of a charged balloon.
HCl is not attracted or repelled from the balloon
HCl is repelled away from the balloon
HCl is attracted to the balloon
