Laser_3

In the Hall process, ________ is reduced ________.

In the Hall process, ________ is reduced ________.

[html]In the Hall process, ________ is reduced ________.

▸ nickel; electrolytically

▸ alumin

edelynpl   73   1 Reply

Moh1995abdel

In gunpowder, which component is present in the highest percent by mass?

In gunpowder, which component is present in the highest percent by mass?

[html]In gunpowder, which component is present in the highest percent by mass?

▸ wood charcoa

SeaBass2013   66   1 Reply

wukong81

In n-type semiconductors

In n-type semiconductors

[html]In  n-type semiconductors

▸ the energy gap between the valence band and the cond

remy2012   69   1 Reply

ssong07

Hydrometallurgy uses ________ to separate a metal from its ore.

Hydrometallurgy uses ________ to separate a metal from its ore.

[html]Hydrometallurgy uses ________ to separate a metal from its ore.

▸ solid phase chemical

Ashurbanipal   70   1 Reply

davisdiamond

For the production of metallic chromium at high temperatures, which is NOT an appropriate choice for ...

For the production of metallic chromium at high temperatures, which is NOT an appropriate choice for ...

[html]For the production of metallic chromium at high temperatures, which is NOT an appropriate choice for the metal M?

swimchk13   71   1 Reply

voltayre

Electrometallurgy uses ________ to separate a metal from its ore.

Electrometallurgy uses ________ to separate a metal from its ore.

[html]Electrometallurgy uses ________ to separate a metal from its ore.

▸ solid phase chemica

nisha   58   1 Reply

snowcat012

Electrolysis is used as the last step in isolating pure

Electrolysis is used as the last step in isolating pure

[html]Electrolysis is used as the last step in isolating pure

▸ iron.

▸ boron.

▸ aluminum.

urraberry   60   1 Reply

jmoline2

Cryolite, Na3AlF6, is used in the electrolysis of aluminum oxide because

Cryolite, Na3AlF6, is used in the electrolysis of aluminum oxide because

[html]Cryolite, Na3AlF6, is used in the electrolysis of aluminum oxide because

dex0388   75   1 Reply

kniemeier2

Calcium oxide is added to molten iron in the production of carbon steel in order to

Calcium oxide is added to molten iron in the production of carbon steel in order to

[html]Calcium oxide is added to molten iron in the production of carbon steel in order to

▸ c

FallenOne   84   1 Reply

latoya86

Basic properties are characteristic of all alkaline earth metal oxides except one. Which is the exception?

Basic properties are characteristic of all alkaline earth metal oxides except one. Which is the exception?

[html]Basic properties are characteristic of all alkaline earth metal oxides except one. Which is the exception?

malhi101   81   1 Reply

starikovs

Aluminum is an active metal, but does not corrode as iron does because

Aluminum is an active metal, but does not corrode as iron does because

[html]Aluminum is an active metal, but does not corrode as iron does because

▸ Al does not re

prpnum1   48   1 Reply

schoolkidchuck

Alloys of iron that contain 1.01.5% carbon and some manganese, phosphorus, silicon, and sulfur are called

Alloys of iron that contain 1.01.5% carbon and some manganese, phosphorus, silicon, and sulfur are called

[html]Alloys of iron that contain 1.0–1.5% carbon and some manganese, phosphorus, silicon, and sulfur are called

ellie425   63   1 Reply

chevy87

Alloying a metal is done to

Alloying a metal is done to

[html]Alloying a metal is done to

▸ make its extraction from its ore easier.

▸ convert the metal to an oxide.

freezo1994   59   1 Reply

schmience

According to the band theory, which of these statements provide(s) an explanation for the high ...

According to the band theory, which of these statements provide(s) an explanation for the high ...

[html]According to the band theory, which of these statements provide(s) an explanation for the high

cheesyboots   56   1 Reply

shanej399

According to the band theory, a band is

According to the band theory, a band is

[html]According to the band theory, a  band is

▸ an elastic force that holds electrons

adnan_buljic   46   1 Reply

penmc

________ consists of potassium nitrate, wood charcoal, and sulfur.

________ consists of potassium nitrate, wood charcoal, and sulfur.

[html]________ consists of potassium nitrate, wood charcoal, and sulfur.

▸ Salt peter

▸ Chil

kickergb40   49   1 Reply

annalass

The halogens act as oxidizing agents in most of their reactions.

The halogens act as oxidizing agents in most of their reactions.

[html]The halogens act as oxidizing agents in most of their reactions.

wberry8   43   1 Reply

josham

The Haber process is the first step in the manufacture of sulfuric acid.

The Haber process is the first step in the manufacture of sulfuric acid.

[html]The Haber process is the first step in the manufacture of sulfuric acid.

yandy   37   1 Reply

WoodyNRex

The chemistry of fluorine differs in many ways from that of the rest of the halogens.

The chemistry of fluorine differs in many ways from that of the rest of the halogens.

[html]The chemistry of fluorine differs in many ways from that of the rest of the halogens.

mhbtelc   47   1 Reply

dm408

The acidity of oxides of main group elements increases down a group, from top to bottom.

The acidity of oxides of main group elements increases down a group, from top to bottom.

[html]The acidity of oxides of main group elements increases down a group, from top to bottom.

tootsiebrowny   43   1 Reply

kinnigit

The acidity of oxides of main group elements increases across a period from left to right.

The acidity of oxides of main group elements increases across a period from left to right.

[html]The acidity of oxides of main group elements increases across a period from left to right.

dalvirb   39   1 Reply

durandal

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Sulfuric acid is produced when sulfur dioxide dissolves in water.

[html]Sulfuric acid is produced when sulfur dioxide dissolves in water.

zitze   42   1 Reply

wardasid

Phosphoric acid (H3PO4) is a strong acid.

Phosphoric acid (H3PO4) is a strong acid.

[html]Phosphoric acid (H3PO4) is a strong acid.

Ryan37sport   39   1 Reply

tswinson3

P4O6 and P4O10 are allotropes of phosphorus.

P4O6 and P4O10 are allotropes of phosphorus.

[html]P4O6 and P4O10 are allotropes of phosphorus.

Katie32   49   1 Reply

romeo_izzy13

Ozone is both a pollutant and a natural component of the atmosphere.

Ozone is both a pollutant and a natural component of the atmosphere.

[html]Ozone is both a pollutant and a natural component of the atmosphere.

Katseye   37   1 Reply

dreamnluv

Of the three oxides SiO2, MgO, and P4O10, the most acidic oxide is P4O10.

Of the three oxides SiO2, MgO, and P4O10, the most acidic oxide is P4O10.

[html]Of the three oxides SiO2, MgO, and P4O10, the most acidic oxid

darkfire12   39   1 Reply

kingqadri

Nonmetals are more electropositive than metals.

Nonmetals are more electropositive than metals.

[html]Nonmetals are more electropositive than metals.

▸ true

▸ false[/h

momoluv25   43   1 Reply

dmp7474

Ionic hydrides do not have exact (stoichiometric) formulas.

Ionic hydrides do not have exact (stoichiometric) formulas.

[html]Ionic hydrides do not have exact (stoichiometric) formulas.

▸ true

usha   34   1 Reply

niecey

Hydrogen is placed at the top of Group 1 of the periodic table, so it must be a metal.

Hydrogen is placed at the top of Group 1 of the periodic table, so it must be a metal.

[html]Hydrogen is placed at the top of Group 1 of the periodic table, so it must be a metal.

drew911811   37   1 Reply

sz

Binary hydrides contain hydrogen and either a metal or nonmetal.

Binary hydrides contain hydrogen and either a metal or nonmetal.

[html]Binary hydrides contain hydrogen and either a metal or nonmetal.

▸

JadeDeLair   45   1 Reply

ggyxxcool

Alkali metal hydrides are very reactive with water, forming H2 gas.

Alkali metal hydrides are very reactive with water, forming H2 gas.

[html]Alkali metal hydrides are very reactive with water, forming H2 gas.

kyaramarie318   43   1 Reply

armywahine

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X ...

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X ...

[html]Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (

viva902   35   1 Reply

traumajeff

Which would exhibit characteristics of both a metal and a nonmetal?

Which would exhibit characteristics of both a metal and a nonmetal?

[html]Which would exhibit characteristics of both a metal and a nonmetal?

berry   37   1 Reply

Mspractical

Which two electron configurations represent elements that would have similar chemical properties?(1) ...

Which two electron configurations represent elements that would have similar chemical properties?(1) ...

[html]Which two electron configurations represent elements that would have similar chemical propertie

MasterPriapis   42   1 Reply

Ama1911

Which reaction represents the disproportionation of hydrogen peroxide?

Which reaction represents the disproportionation of hydrogen peroxide?

[html]Which reaction represents the disproportionation of hydrogen peroxide?

malhi101   39   1 Reply

lewmyr

Which oxide is an amphoteric oxide?

Which oxide is an amphoteric oxide?

[html]Which oxide is an amphoteric oxide?

▸ Na2O

▸

thallium81   36   1 Reply

Grem

Which one of these species exists as a diatomic element at room temperature?

Which one of these species exists as a diatomic element at room temperature?

[html]Which one of these species exists as a diatomic element at room temperature?

js56154   40   1 Reply

eggr0ll

Which of these substances will have a Lewis structure with an incomplete octet?

Which of these substances will have a Lewis structure with an incomplete octet?

[html]Which of these substances will have a Lewis structure with an incomplete octet?

citycyborg   38   1 Reply

jaymaster

Which of these substances is being considered as a replacement fuel for gasoline?

Which of these substances is being considered as a replacement fuel for gasoline?

[html]Which of these substances is being considered as a replacement fuel for gasoline?

asaini1254   35   1 Reply

nancy123

Which of these species is not an acidic oxide?

Which of these species is not an acidic oxide?

[html]Which of these species is  not an acidic oxide?

▸ P

theferpectstudent   30   1 Reply

cskeen80