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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
Organic, inorganic, analytical, etc.
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Identify the substances which contain a high concentration of a specific mineral.
Identify the substances which contain a high concentration of a specific mineral.
Identify the substances which contain a high concentration of a specific mineral.
A) slag
B) minerals
C) ores
D) gangue
E) alloy
stoneskin21   74   1 Reply
5 years ago
Identify the substances which are homogeneous, naturally occurring, crystalline inorganic solids.
Identify the substances which are homogeneous, naturally occurring, crystalline inorganic solids.
Identify the substances which are homogeneous, naturally occurring, crystalline inorganic solids.
A) slag
B) minerals
C) ores
D) gangue
E) alloy
huda   81   1 Reply
5 years ago
Metals make up only ________ percent of the earth's crust.
Metals make up only ________ percent of the earth's crust.
Metals make up only ________ percent of the earth's crust.
A) 40
B) 50
C) 25
D) 30
E) 20
Fattbatts   52   1 Reply
5 years ago
Identify the element with the highest thermal conductivity.
Identify the element with the highest thermal conductivity.
Identify the element with the highest thermal conductivity.
A) copper
B) vanadium
C) silver
D) iron
alexweebz   63   1 Reply
5 years ago
________ is a soft-white metal that has been found as a contaminant in crude oil.
________ is a soft-white metal that has been found as a contaminant in crude oil.
________ is a soft-white metal that has been found as a contaminant in crude oil.
A) Vanadium
B) Gold
C) Silver
D) Mercury
E) Copper
083055   74   1 Reply
5 years ago
Write the balanced reaction that shows the formation of ICl3 from its elements.
Write the balanced reaction that shows the formation of ICl3 from its elements.
Write the balanced reaction that shows the formation of ICl3 from its elements.
tree51   42   1 Reply
5 years ago
Draw the Lewis structure for IF4 and determine the geometry of the ion.
Draw the Lewis structure for IF4 and determine the geometry of the ion.
Draw the Lewis structure for IF4 and determine the geometry of the ion.
AutoPenalti   69   1 Reply
5 years ago
Describe the Frasch process for obtaining sulfur.
Describe the Frasch process for obtaining sulfur.
Describe the Frasch process for obtaining sulfur.
pulseh14   37   1 Reply
5 years ago
Describe the major production method for obtaining oxygen.
Describe the major production method for obtaining oxygen.
Describe the major production method for obtaining oxygen.
QueenPinky   30   1 Reply
5 years ago
Why are the chemical properties of nitrogen and phosphorus so different when they are in the same family?
Why are the chemical properties of nitrogen and phosphorus so different when they are in the same family?
Why are the chemical properties of nitrogen and phosphorus so different when they are in the same family?
jayjayhussle310   55   1 Reply
5 years ago
Why are phosphate compounds added to detergents?
Why are phosphate compounds added to detergents?
Why are phosphate compounds added to detergents?
jayjayhussle310   33   1 Reply
5 years ago
Determine the oxidation state of chlorine in ClO-.
Determine the oxidation state of chlorine in ClO-.
Determine the oxidation state of chlorine in ClO-.
A) 0
B) +1
C) -2
D) -1
E) +2
tree51   63   1 Reply
5 years ago
Identify the compound that smells like a rotten egg.
Identify the compound that smells like a rotten egg.
Identify the compound that smells like a rotten egg.
A) SO
B) H2SO2
C) H2SO4
D) S4
E) H2S
luhhshortiee   76   1 Reply
5 years ago
What is the oxidation number of oxygen in Na2O?
What is the oxidation number of oxygen in Na2O?
What is the oxidation number of oxygen in Na2O?
A) -4
B) +2
C) -2
D) -3
E) 0
Jay.M   65   1 Reply
5 years ago
What is the oxidation number of oxygen in H2O2?
What is the oxidation number of oxygen in H2O2?
What is the oxidation number of oxygen in H2O2?
A) -4
B) +2
C) -3
D) -1
E) +1
rachel3430   79   1 Reply
5 years ago
Identify an example of a nitrate.
Identify an example of a nitrate.
Identify an example of a nitrate.
A) LiN3
B) NaNO2
C) NaNO3
D) NO2
E) NO
Celeste23   26   1 Reply
5 years ago
Identify an example of a nitrite.
Identify an example of a nitrite.
Identify an example of a nitrite.
A) KNO2
B) NO
C) N2O
D) NaNO3
E) NO4
klcarrasquillo   29   1 Reply
5 years ago
Determine the oxidation state of nitrogen in LiNO2 .
Determine the oxidation state of nitrogen in LiNO2 .
Determine the oxidation state of nitrogen in LiNO2 .
A) +1
B) -2
C) +5
D) 0
E) +3
James89   33   1 Reply
5 years ago
Determine the oxidation state of nitrogen in KNO3 .
Determine the oxidation state of nitrogen in KNO3 .
Determine the oxidation state of nitrogen in KNO3 .
A) +1
B) +6
C) -2
D) +4
E) +5
stoneskin21   30   1 Reply
5 years ago
Determine the oxidation state of nitrogen in KN3.
Determine the oxidation state of nitrogen in KN3.
Determine the oxidation state of nitrogen in KN3.
A) +1
B) +3
C) -2
D) -  
E) -3
skawa1991   37   1 Reply
5 years ago
Determine the oxidation state of carbon in the carbonate ion, Na2CO3 .
Determine the oxidation state of carbon in the carbonate ion, Na2CO3 .
Determine the oxidation state of carbon in the carbonate ion, Na2CO3 .
A) +2
B) +4
C) +3
D) -6
E) +8
rhwyatt   40   1 Reply
5 years ago
Identify the form of carbon that is used for gems.
Identify the form of carbon that is used for gems.
Identify the form of carbon that is used for gems.
A) coal
B) charcoal
C) gasoline
D) diamond
E) fullerene
killak   26   1 Reply
5 years ago
Identify the form of carbon that is added to tires to strength the tire and maintain flexibility.
Identify the form of carbon that is added to tires to strength the tire and maintain flexibility.
Identify the form of carbon that is added to tires to strength the tire and maintain flexibility.
A) carbon black
B) buckyball
C) graphite
D) coal
E) fullerene
Celeste23   47   1 Reply
5 years ago
Identify the form of coal that has a high carbon content.
Identify the form of coal that has a high carbon content.
Identify the form of coal that has a high carbon content.
A) nanotube
B) graphite
C) anthracite
D) fullerene
E) gasoline
Peryeeee   40   1 Reply
5 years ago
Give the bond angle of a boron triiodide.
Give the bond angle of a boron triiodide.
Give the bond angle of a boron triiodide.
A) 90
B) 45
C) 120
D) 107
E) 103
Laura0624   50   1 Reply
5 years ago
Give the shape of a boron tribromide.
Give the shape of a boron tribromide.
Give the shape of a boron tribromide.
A) trigonal planar
B) tetrahedral
C) T-shaped
D) trigonal bipyramidal
E) octahedral
jayjayhussle310   51   1 Reply
5 years ago
Refer to the table below. Predict the silicate structure for ZnBa2(Si2O7).
Refer to the table below. Predict the silicate structure for ZnBa2(Si2O7).
Refer to the table below. Predict the silicate structure for ZnBa2(Si2O7).

Table 23.2  Types of Silicate Structures
TetrahedronsShared VerticesFormula UnitSi : O  RatioClass NameExample
Single tetrahedron0SiO44-1 : 4Orthosilicates, nesosilicatesOliv
AutoPenalti   52   1 Reply
5 years ago
Refer to the table below. Use charge balance to determine the value of x in the pyroxene Srx(SiO3)2.
Refer to the table below. Use charge balance to determine the value of x in the pyroxene Srx(SiO3)2.
Refer to the table below. Use charge balance to determine the value of x in the pyroxene Srx(SiO3)2.

Table 23.2  Types of Silicate Structures
TetrahedronsShared VerticesFormula UnitSi : O  RatioClass NameExample
Single tetrahedron0SiO44-1 : 4Orthosi
sunnywwang   31   1 Reply
5 years ago
Refer to the table below. Use charge balance to determine the value of x in the phyllosilicate ...
Refer to the table below. Use charge balance to determine the value of x in the phyllosilicate ...
Refer to the table below.  Use charge balance to determine the value of x in the phyllosilicate Zn3(Si2O5)2(OH)x.

Table 23.2  Types of Silicate Structures
TetrahedronsShared VerticesFormula UnitSi : O  RatioClass NameExample
Single tetrahedron0SiO4
Imbajade   33   1 Reply
5 years ago
Give the formula of the compound that is in quartz.
Give the formula of the compound that is in quartz.
Give the formula of the compound that is in quartz.
A) SiO4
B) Si2O3
C) SiO3
D) Si2O4
E) SiO2
traggthuyy@gmai   30   1 Reply
5 years ago
Which of the following are major components of Earth's crust?
Which of the following are major components of Earth's crust?
Which of the following are major components of Earth's crust?
A) oxygen and silicon
B) calcium and silicon
C) oxygen and hydrogen
D) oxygen, magnesium and carbon
E) oxygen, hydrogen and carbon
Fattbatts   38   1 Reply
5 years ago
Identify a characteristic of chlorine dioxide.
Identify a characteristic of chlorine dioxide.
Identify a characteristic of chlorine dioxide.
A) bleaches wood
B) powerful oxidizing agent
C) explosive
D) bleaches flour
E) all of the above
orengo   41   1 Reply
5 years ago
Write the balanced equation that represents the formation of hydrofluoric acid from the reaction of ...
Write the balanced equation that represents the formation of hydrofluoric acid from the reaction of ...
Write the balanced equation that represents the formation of hydrofluoric acid from the reaction of calcium fluoride with sulfuric acid.
A) CaF2 + H2S    CaS + 2 HF
B) CF4 + 2 H2S    4 HF + CS2
C) CF4 + 2 H2SO4    4 HF + CS2 + CO2
D) CaF2 + H2SO4    
Miguel9717   106   1 Reply
5 years ago
Identify a property of fluorine.
Identify a property of fluorine.
Identify a property of fluorine.
A) reacts with glass
B) has weakest X-X bond energy
C) oxidizes other substances quickly
D) reacts with xenon
E) all of the above
ellehaine24   31   1 Reply
5 years ago
Identify the most reactive element.
Identify the most reactive element.
Identify the most reactive element.
A) N
B) H
C) C
D) O
E) F
Lola617   34   1 Reply
5 years ago
Determine the oxidation state of sulfur in SO2.
Determine the oxidation state of sulfur in SO2.
Determine the oxidation state of sulfur in SO2.
A) +3
B) +6
C) +2
D) +4
E) 0
083055   64   1 Reply
5 years ago
Determine the oxidation state of sulfur in S2O32-.
Determine the oxidation state of sulfur in S2O32-.
Determine the oxidation state of sulfur in S2O32-.
A) +3
B) +6
C) +2
D) +4
E) 0
thall031   53   1 Reply
5 years ago
Identify the compound that is formed by volcanos and is a coal pollutant.
Identify the compound that is formed by volcanos and is a coal pollutant.
Identify the compound that is formed by volcanos and is a coal pollutant.
A) SO2
B) H2SO3
C) H2SO4
D) S4
E) H2S
darla   34   1 Reply
Guest
5 years ago
Identify the oxygen compound that kills bacteria and is used as a disinfectant.
Identify the oxygen compound that kills bacteria and is used as a disinfectant.
Identify the oxygen compound that kills bacteria and is used as a disinfectant.
A) O3
B) O2
C) SO2
D) SO3
E) NO2
topgradehub   28   1 Reply
5 years ago
Identify a characteristic that natural oxygen does NOT have.
Identify a characteristic that natural oxygen does NOT have.
Identify a characteristic that natural oxygen does NOT have.
A) odorless
B) colorless
C) pale green liquid
D) diatomic
E) nonpolar
dominicklacasse   51   1 Reply
5 years ago
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