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Chemical Compounds
Page 8
Questions (480)
A compound was found to contain copper and chlorine. The mass of the compound was 351 mg. The amount of copper in the sample was
2 answers
asked by
Sandy M.
612 views
Acetone is an important chemical solvent and is used at homes as a nail polish remover. Chemical analysis shows that acetone is
2 answers
asked by
Anonymous
602 views
How many grams of MgCl2 is needed to make 1200ml of a .25M solution?
.25M/L* 1200mL/1* 1L/1000mL* 95.211:-/ mol I got 28.563g
2 answers
asked by
sarah
586 views
Chemistry
Hey guys, i have a question about how to figure out how much mass of a compound i need to find 130ppm here is the
2 answers
asked by
John
583 views
A compound contains only potassium and iodine. A sample weighing 12.3 g of this compound contained 2.90 g of potassium. How many
2 answers
asked by
Madoo
587 views
a molecule of sodium carbonate contains 2 atoms of sodium to every 3 atoms of oxygen. could a compound containing 12 atoms of
2 answers
asked by
AMY
566 views
I have to sort compounds into groups, separating them by if they are acidic, Ionic, or Covalent.
Heres the list: Calcium
2 answers
asked by
Kaylee
619 views
Calculate the number of grams of xenon in 3.566 g of the compound xenon tetrafluoride.
3 answers
asked by
Chemistry
586 views
Find two interesting factoids for ammonium iodide, sodium acetate, silver nitrate, calcium carbonate, lithium carbonate,
2 answers
asked by
Anonymous
565 views
sodium chloride has a molar mass of 58.4g/mole. how many grams of sodium chloride are needed to make 500.mL of a 0.0250 molar
2 answers
asked by
alyssa
566 views
I have to go to work this weekend so I'm trying to get my homework finished. Could you please help me figure out this question?
C
3 answers
asked by
Anonomous
547 views
Name the compound or give molecular formula.
1. Pt(NO2)2 : ? Is it Platinum (II) Nitrite 2. Manganese (II) bromide pentahydrate:?
3 answers
asked by
Sanaya
566 views
How much Ca(NO3)2 should be weighed out to have 0.650?
To have 0.650 what of what. Do you want 0.650 g Ca?
2 answers
asked by
Bob
552 views
Are these correct also?
Ammonium Chloride : NH4Cl Nitrogen Dioxide : NO2 Hydroiodice Acid : HI Stannous Iodide : SnI2 Perchloric
2 answers
asked by
Anonymous
573 views
a binary compound between germanium and bromine would have a formula like:
(a)
1 answer
asked by
kooldude
546 views
While trace impurities of iron and chromium in natural corundum form the gemstones ruby and sapphire, they are basically a
2 answers
asked by
minnie
539 views
What is the thermal stability of potassium phosphate and why?
Thanks. I assume you mean as a powder, not as an water solution.
2 answers
asked by
Cheryllyn
567 views
Are these correct?
1. KBr: Potassium Bromide 2. Cu2O: Copper (I) Oxide 3. HCl: Hydrochloric Acid 4. N2O4: Dinitrogen Tetroxide 5.
2 answers
asked by
Anonymous
562 views
How many chloride ions are present in 21.0 grams of CaCl2?
3 answers
asked by
Anonymous
556 views
The three common chromium oxides are CrO,
Cr2O3, and CrO3. If Cr2O3 is amphoteric, what can you say about the acid-base
2 answers
asked by
vichka
555 views
CoCl2 is a compound that is blue when it is dehydrated and pink when in its hydrated form. I have seen a solution of CoCl2 used
1 answer
asked by
DrBob222
552 views
A compound is made up of two elementsA and B,has A=70%,B=30%.The relative number of moles of Aand B in the compound are 1.25 and
2 answers
asked by
Arunvenukumar
551 views
SHURGRO fertilizer contains 18% ammonia plus carbon compounds.If 80% of the ammonia contains the chemical element nitrogen, what
4 answers
asked by
thomas
541 views
How many grams of glycerin C3H8O3 must be dissolved in 375.9g of water at 100 degrees Celsius to reduce the pressure of water
3 answers
asked by
Jude
543 views
If you are a mixture of ammonium chloride, barium sulphate and sodium chloride how would you produce a pure dry sample of each
2 answers
asked by
Jose-Ann
533 views
What do sodium bicarbonate and magnesium hydroxide have in common?
2 answers
asked by
Suzanne
516 views
sodium iodide
copper II chloride sodium sulphate NaOH HCl magnesium nitrate also is this true: if the metal in the compound is
2 answers
asked by
Nabiha
520 views
Boron forms a gaseous compound with hydrogen with empirical formula BH3. a 1.05L sample of this compound at a pressure of 88 mm
2 answers
asked by
mary
533 views
is Lead II Dichromate soluable?
2 answers
asked by
Matt
509 views
Can I ask for the 3D model of the ammonium cyanate. It's formula mass and picture.
I cannot find my Merck. Your school or public
1 answer
asked by
Danielle Stacey
549 views
Which option contains an example of a polyatomic ion?(1 point) Responses CaCl2 CaCl 2 MgCl MgCl KNO3 KNO 3 O2
1 answer
asked by
hatemaths
30 views
How many total atoms are in the following compound?
NaHCO3
1 answer
asked by
b
9 views
The chemical formula for phosphorus trichloride is PCl3. In one to two sentences, explain how you would build a ball-and-stick
2 answers
asked by
JennaFromConexxus
500 views
Hydrogen bromide gas, a polar covalent compound, is very soluble in water. Describe what happens, referring to intermolecular
1 answer
asked by
DK
488 views
I have a compound of Na2subscriptCO3subscript. The cation it breaks into is NA+1 in the upper righthand corner, and the anion is
3 answers
asked by
Nelle
499 views
a compound consist of carbon,hydrogen and oxygen only.the percentage by mass are carbon 40.0% and 6,7% hydrogen.calculate the
1 answer
asked by
ellen
483 views
A sample of silver chromate (Ag2CrO4) has a mass of 29.0 g. How many CrO42- ions are present?
2 answers
asked by
w
492 views
Carbon tetrachloride CCl4 contains carbon (EN = 2.5) and chloride (EN = 3.0). Because of this, CCl4 is:
2 answers
asked by
Lance
494 views
Is BrCL3 Bromine tricholoride? What is the name of SnCl3?
2 answers
asked by
Anonymous
476 views
The fictitious compound, pandemonium fluoride (PnF2) has a Ksp value in water of 3.091×10−9M3 at room temperature. Calculate
1 answer
asked by
anita
485 views
It forms NH4Cl, ammonium chloride, which is soluble in the water.
1 answer
asked by
DrBob222
485 views
name the following compounds and tell what type of compound they are (binary ionic. ternary ionic, or binary molecular)
a)FeBr3
3 answers
asked by
Hokoslavia
494 views
Dissolving one mole of salt in water yields two moles of ions.
A:NH4[Pt(NH3)Cl3] B: tris(ethylenediamine)cobalt(III) sulfate C:
1 answer
asked by
Amanda
463 views
So in science we are doing cold packs,
So we have to use water and the following.... Please help me choose one(have to get from 0
3 answers
asked by
Fireheart
489 views
In a molecule of lithium sulfide, there are two atoms of lithium and one atom of sulfur. Which statement about lithium sulfide
1 answer
asked by
Timothydaileyblum
50 views
I I need so much help. Can anyone explain in detail what is going on?
The compound is Potassium Carbonate. What would the flame
1 answer
asked by
Jennie
462 views
a student accidentally mixed sodium carbonate an calcium carbonate. state how he would obtain pure sodium carbonate from the
1 answer
asked by
james
463 views
Does anyone know what this compound is:
C2H3ClBrF? I need a skeleton diagram. Many thanks Sue
3 answers
asked by
sue
467 views
What is another name ordiagram of 2-butene and hydroiodic acid.
Any help would be greatly appreciated.
1 answer
asked by
George
455 views
What is NaOH?
1 answer
asked by
Grace
433 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