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Chemical Compounds
Page 7
Questions (484)
oleum or fuming sulfuric acid available commercially in concentration rnaging from 20 to 99.9% sulfur trioxide.
What is the
1 answer
asked by
Anonymous
906 views
A compound has the % composition by mass that is 87.8% C and 12.2 % H. What is the molecular formula if it has a molecular mass
2 answers
asked by
Anonymous
870 views
match the definition
tar nicotine sidestream smoke stimulant addictive drug carcinogen mainstream smoke secondhand smoke
1 answer
asked anonymously
67 views
where would you find calcium carbonate and sodium chloride outside a chemistry lab?
3 answers
asked by
Nabiha
864 views
a compound is made up of iron and oxygen, only. the ratio of iron ions to oxide ions is 2:3 in this compound. the iupac name for
3 answers
asked by
Glenn
879 views
Monosodium glutamate (NaC5H8NO4) is used extensively as a flavor enhancer.
What is its percent composition?
3 answers
asked by
Jane
843 views
What kind of compound is table salt and how does it dissolve in water? Would salt dissolve in vegetable oil? Why or Why not?
2 answers
asked by
Natalie
883 views
Which compound has the highest lattice energy?
a) CaO b) LiF c) MgO d) NaF I am guessing B because Lithium has the lowest energy
2 answers
asked by
Anonymous
861 views
State one important use of each of the following
i)Quick lime(calcium oxide) ii)Caustic soda(sodium hydroxide)
2 answers
asked anonymously
38 views
what would be the name for these compounds?
K3PO4? It's not Tripotassium phosphate. HCL? its not Hydrogen chloride.
3 answers
asked by
alex
823 views
The chemical and engineering properties of cement are very important in the construction industries. One of the four principle
2 answers
asked by
Taynell
812 views
How many potassium ions are present in the following:
1) 3 moles of potassium chloride.
2 answers
asked by
Nicole
800 views
WHAT ARE THE DEFINITION OF DRYING AGENT;DELIQUSCENT SUBSTANCES;HYGROSCOPIC SUBSTANCES;EFFLORESCENT SUBSTANCES.
2 answers
asked by
SAMIRA
552 views
A certain compound contains 8.74% Carbon, 13.8% Fluorine, 77.4% Chlorine by weight. A possible molecular formula for this
5 answers
asked by
Karisa
781 views
Dr Bob
Can you please confirm for me that only NH3 has a boiling point that does not fit the general trend from these choices NH3
5 answers
asked by
Andy
786 views
Many chemical salts come as hydrated crystals. That is, there is a specific ratio of water molecules associated with the salt
3 answers
asked by
Lisa
785 views
A compound which contains hydrogen, oxygen, carbon only has molar mass of about 85 g/mol. When 0.43 g of the compound is burned
2 answers
asked by
Clive Lodnyx
777 views
While I3- and Br3- are both stable molecules F3- is not a stable molecule. Provide an explanation.
1 answer
asked by
Mahnoor
791 views
Zinc chloride (ZnCl2) is 52.02% chlorine by
mass. What mass of chlorine is contained in 53.6 g of ZnCl2? Answer in units of g
1 answer
asked by
lynn
751 views
Write formulas for the compounds that form from In and each of the following polyatomic ion: NO−3, SO2−4, PO3−4.
(Assume In
1 answer
asked by
MELISSA
767 views
strontium chloride can be obtained as the anhydrous salt, SrCl2, and as the hydrates SrCl2.2H20, and SrCl2.6H20. (ArSr = 87.5).
1 answer
asked by
kate
773 views
selenium tetrafluoride, SeF4 is a colorless. it has vapor pressure of 757mmhg at 105 deg c and 522mmhg a 95 deg c. what is the
2 answers
asked by
Del
766 views
what is the chemical name and lewis structure of NO3 -2
2 answers
asked by
Amanda
717 views
Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as
2 answers
asked by
sam
735 views
cobalt(11)chloride is commonly obtained from chemical supply houses as a hydrate with the formula CoCl2*6H2O. An analysis showed
2 answers
asked by
Xihlamariso
754 views
Write the symbol and electron configuration for each ion and name the noble gas with the same configuration.
a. nitride
2 answers
asked by
Greg
745 views
Which of the following sets of compounds DO NOT follow the law of multiple proportions?
a) NH3, H2O and NO2 b) NO, NO2 and N2O5
2 answers
asked by
Muneer
728 views
is Sodium Dichromate a binary or Ternary compound?
2 answers
asked by
lucy
704 views
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing
2 answers
asked by
Danielle
711 views
Which of the following elements can form chemical compounds. CHECK ALL THAT APPLY.
Xe Rn Kr Ne H He Is this a trick
3 answers
asked by
Ginger
723 views
how do the names of covalent compounds differ from the names of ionic compounds?
2 answers
asked by
Boo Boo
756 views
Which compound would be ionic?
H2O, CO2, SrCl2,SO2, H2S
2 answers
asked by
Tony
690 views
Copper (II) fluoride contains 37.42% {\rm F} by mass. Use this percentage to calculate the mass of fluorine (in {\rm g})
2 answers
asked by
Justin
718 views
How many moles of ammonium ions and how many moles of sulfate ions are contaiuned in a 0.400 mile sample of (NH4)2SO4?
Referring
3 answers
asked by
Chelsea
711 views
what are the solute particles present in boric acid (H3BO3)?
4 answers
asked by
jade
676 views
The fictitious compound, pandemonium carbonate Pn(CO3)2 hase a Ksp=3.091×10−9 M3 in water at room temperature. Calculate the
2 answers
asked by
anita
695 views
Hi
Can anyone help me determine the valency of selenium in hydrogen selenide... how do you work this out ??? Thank you .. Freddo
1 answer
asked by
Freddo
702 views
A procedure states "use iron(III)chloride hexahydrate".
Can I use anhydrous iron(III) chloride instead if the hexahydrate is not
1 answer
asked by
janice
691 views
list three differences between molecular and ionic compounds, and explain how they relate to the differences in bond
1 answer
asked by
INEEDHELP!!!
697 views
WHAT IS HS2SO4
2 answers
asked by
Anonymous
657 views
1. Write the formula for these compounds:
a) sodium tris(oxalato)rhodium(III) b) sodium tetrachloroplatinate(II) c)
2 answers
asked by
Sara
653 views
What is the main chemical ingredient of glass? What is its common name?
1 answer
asked by
Bamise Falodun
23 views
why is CCl4 classified as a compound?
3 answers
asked by
Anonymous
619 views
in a compound of nitrogen and oxygen, 14.0 grams of nitrogen combines with 32.0 grams of oxygen. How much oxygen is required to
2 answers
asked by
Don
625 views
What does H2O stand for in science
2 answers
asked by
Daniel
607 views
In the compound PtCl2(NH3)2, what is the percentage of the mass due to nitrogen?
2 answers
asked by
Timber
607 views
If a sample of Mg3(PO4)2, has a mass of 0.200 g, what is the mass of phosphorus in that sample?
5 answers
asked by
Julianna
616 views
I ned these classified as metallic, ionic, molecular or covalent network and two reasons why.
Aluminum Ascorbic acid Graphite
2 answers
asked by
Morgan
608 views
A crystalline white solid is a mixture of glucose (C6H12O6) and sucrose (C12H22O11). Is it possible that a 10.00 g sample of the
2 answers
asked by
JJ
607 views
What is the chemically combined substance of a hydrogen atom and a helium atom. please help me because i really don't know this
1 answer
asked by
Anonymous
599 views
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Parent Categories (10)
Chemistry
Elements
Inorganic Chemistry
Materials
Organic Chemistry
Physical Chemistry
Science and Chemistry
Science/Chemistry
Science/Substance Chemistry
Scientific notation