Elements and Compounds
Questions about the properties and characteristics of elements as observed in nature and in compounds. Chemical formulas are also converted to and from symbols in covalent or ionic bonds. All the questions you want to ask about the elements and the compounds they form.
Total questions 173900
Follow
ID1330013874
added What are the chemical formulas for each of the halogen molecules to Elements and Compounds 27 May 2012 10:37
ID0689624085
added What is the prosess of pear gold to a product to Elements and Compounds 27 May 2012 10:27
ID1838505205
added PLZ HELP. Can you describe fully two ways in which isotopes of the same atom are similar to Elements and Compounds 27 May 2012 10:07
ID0460089686
added Is KCl covalent or ionic compound to Elements and Compounds 27 May 2012 08:15
Answers
Norvellwisdom
Vigorouschemist
Desdichado
GRALISTAIR
TheSuperBoss
Edits
Vigorouschemist
GRALISTAIR
Desdichado
Mannydlr
Theprismgroup
Organization
Desdichado
Vigorouschemist
GRALISTAIR
Deb
Dfoofnik
Questions
Narayan Sarkar
Vigorouschemist
Ilovetacos015
HotAnswerer
Wolfchick333
Community
Lazarus
Norvellwisdom
Jennifer Rokusek
Jabloc
Alijanali
CO2 Is the chemical formula of carbon dioxide
Popularity: 34 • Tools: Recategorize
The proton number corresponds to the element bromine. The mass number is not one for an element but rather for the isotope...
Popularity: 34 • Tools: Recategorize
Ca + F2 -----> CaF2 It is the correct equation because calcium has a valency of 2 and fluorine has a valency of 1, so two...
Popularity: 34 • Tools: Recategorize
Noble gases. (They actually can combine with other elements, but don't tend to because of the results of their electron...
Popularity: 34 • Tools: Recategorize
in an atom protone makes the each element unique
Popularity: 34 • Tools: Recategorize
the elements is a drama while the news is in the news paper or radio.
Popularity: 34 • Tools: Recategorize
The Chemical Formula for Potassium Acetate is CH3CO2K which shows that it has 4 types of atoms in it: 2 Carbon, 3 Hydrogen, 2...
Popularity: 34 • Tools: Recategorize
All elements are pure substances.
Popularity: 34 • Tools: Recategorize
yes because Cesium is except for Francium, the most reactive element of the alkaline metals. It explodes in water because it...
Popularity: 34 • Tools: Recategorize
The most radioactive and dangerous is radon.
Popularity: 34 • Tools: Recategorize
NCl3 is nitrogen trichloride. N = nitrogen, Cl = chloride, 3 = tri, or three.
Popularity: 34 • Tools: Recategorize
Do NOT douche with hydrogen peroxide. It might hurt and it might wash the sperm higher/into your uterus and make you pregnant. ...
Popularity: 34 • Tools: Recategorize
C3h6o + 4 o2 -> 3 co2 + 3 h2o
Popularity: 34 • Tools: Recategorize
The fact that they are joined by polar covalent bonds is irrelevant as intermolecular bonds do not usually determine the polarity...
Popularity: 34 • Tools: Recategorize
Intermolecular forces are the forces of attraction that exist between molecules in a compound. The stronger the attractions...
Popularity: 34 • Tools: Recategorize
Potassium iodide :)
Popularity: 34 • Tools: Recategorize
AnswerI took chemistry a few years ago so my explanations may not be thorough. There are several types of bonds possible. There...
Popularity: 33 • Tools: Recategorize
3 Atoms in a Water MoleculeThere are 3 total atoms in water, which is H2O. There are 2 hydrogen atoms (H), and 1 oxygen atom (O)....
Popularity: 33 • Tools: Recategorize
lanthanide contraction, or f-block contraction. Source: http://facultyfp.salisbury.edu/dfrieck/htdocs/212/rev/table/size.htm...
Popularity: 33 • Tools: Recategorize
Not much different. Stony metorites contain the same minerals as continental crust. Iron-nickel meteorites, such as the one that...
Popularity: 33 • Tools: Recategorize
A pale yellow nonmetallic element occurring widely in nature in several free and combined allotropic forms. It is used in black...
Popularity: 33 • Tools: Recategorize
See the Web Links to the left for a description of each one.
Popularity: 33 • Tools: Recategorize
No, none of them. They do not combust -- they react with water. See the Related Questions link to the left for details about...
Popularity: 33 • Tools: Recategorize
formation of low melting point solutionsAll metal melting point in alloy form with other metal is vary according to its portion...
Popularity: 33 • Tools: Recategorize
[http://www.answers.com/topic/carbon-fiber?cat=technology Click here for the answer from Answers.com]
Popularity: 33 • Tools: Recategorize
Ammonia bicarbonate is nothing at all (nor is ammonia carbonate). Ammonium bicarbonate is a real chemical, and it has formula...
Popularity: 33 • Tools: Recategorize
When we breathe we are adding a new Tidal volume to our Functional Residual capcity. with that comes Oxygen, Carbon dioxide,...
Popularity: 33 • Tools: Recategorize
2CuS + NaCO2
Popularity: 33 • Tools: Recategorize
"oxide" has no formula. An oxide is just a compound (or atom) that has had its valence orbitals satisfied with oxygen molecules....
Popularity: 33 • Tools: Recategorize
Ag-107 and Ag-109 are the two common isotopes of silver. There are nearly a dozen known isotopes of silver, but all are...
Popularity: 33 • Tools: Recategorize
M stands for the metal and HA stands for the strong acid where H is hydrogen and A is the anion (the other ion) of the acid. MCO3...
Popularity: 33 • Tools: Recategorize
If reaction is 100% completed then 16g Calcium produces 22.4g Calcium oxide.
Popularity: 33 • Tools: Recategorize
pure substance
Popularity: 33 • Tools: Recategorize
It is a suspension which is having nitr ogen gas shochker,the so ckersare e quipedwith nitrog enc yelinder.
Popularity: 33 • Tools: Recategorize
IC 7806 have 3 pins. pin1 - in, pin2 - GND, pin3 - out... It provides regulated 6V DC supply...
Popularity: 33 • Tools: Recategorize
flexible
Popularity: 33 • Tools: Recategorize
There is one 'P' ( = phosphor in H3P04)
Popularity: 33 • Tools: Recategorize
There are many different type of acid with different numbers of atoms. Here are a few examples Hydrochloric acid (HCl): 2 ...
Popularity: 33 • Tools: Recategorize
I'm not sure what "balanced" specifically means but I'll do my best to help. Calcium (Ca) has a charge of 2- and Chlorite (ClO2)...
Popularity: 33 • Tools: Recategorize
Glues is a mixture, so it doesn't have a chemical formula. Temperature does not change this. Also, different glues have...
Popularity: 33 • Tools: Recategorize
SBS is favored by manufacturers of folding paperboard boxes for the packaging of cigarettes, frozen and wet foods, meats,...
Popularity: 33 • Tools: Recategorize
Avogadro's constant expresses the number of elementary entities per mole of substance and it has the value 6.02 × 1023 . Thus...
Popularity: 33 • Tools: Recategorize
BaSO4 + NaNO3
Popularity: 33 • Tools: Recategorize
The formula for methane is CH4, which indicates that there are five atoms in each molecule. The number of molecules in one mole...
Popularity: 33 • Tools: Recategorize
No, the given statement is false. The rate of nuclear reactions is independent of external conditions but the rates of chemical...
Popularity: 33 • Tools: Recategorize
Potassium is, K + as a cation. Carbonate is, CO3 2- as a polyatomic anion so, K2CO3 ----------------------must be the only...
Popularity: 33 • Tools: Recategorize
Most exactly, "monoantimony triodide".
Popularity: 33 • Tools: Recategorize
You could be asking about the element Mercury or the planet Mercury. The element Mercury is probably most remarkable for being a...
Popularity: 32 • Tools: Recategorize
because no free radicals are involved in the reaction process only carbo cations and Cl- are evolved which are ionic !!!
Popularity: 32 • Tools: Recategorize
The atomic number of calcium (Ca) is 20.The atomic weight of Ca is 40.078 grams per mole.See the Web Links and the Related...
Popularity: 32 • Tools: Recategorize
The discovery of helium Helium was discovered by the French astronomer Pierre Jules Cesar Janssen during a total solar eclipse in...
Popularity: 32 • Tools: Recategorize
AnswerBleach is used to lighten hair. wtf http://chemistry.about.com/cs/howthingswork/a/aa101203a.htm--------------------Bleach...
Popularity: 32 • Tools: Recategorize
The melting and boiling point of a substance is largely determine by the intermolecular forces which hold its molecules together....
Popularity: 32 • Tools: Recategorize
Butter has no molecular formula because it is composed of a number of different things. One is butterfat, which has over half a...
Popularity: 32 • Tools: Recategorize
Because its a synthetic element.The number that appears in brackets is the most stable isotope of technetium.
Popularity: 32 • Tools: Recategorize
Tollen's reagent is usually ammoniacal silver nitrate. Even in other variations it consists of an aqueous diaminesilver (I)...
Popularity: 32 • Tools: Recategorize
Many foods, in their natural states, contain calcium (like broccoli). Also, unpurified water can contain calcium deposits.
Popularity: 32 • Tools: Recategorize
The solubility of oxides and other ceramic powders depends on what the solution and solvent should be. Temperature is also...
Popularity: 32 • Tools: Recategorize
7.5g is 7500mg 7500mg divided by 220mg = 34.090909 34.090909 x 5ml =170.45455ml can be made An answer of 170.5 mL or even 170...
Popularity: 32 • Tools: Recategorize
A chemical formula is the number of atoms in a substance, and is the same as a molecular formula (provided the substance is a...
Popularity: 32 • Tools: Recategorize
Potassium (K) and iodine (I) combine in a one-to-one ratio to form potassium iodide, which has KI as its chemical or molecular...
Popularity: 32 • Tools: Recategorize
Oxidation describes the loss of electrons by a molecule, atom or ion and if it helps you more
Popularity: 32 • Tools: Recategorize
[Xe]6s24f155d106p6
Popularity: 32 • Tools: Recategorize
Magnesium is so active that it is always covered with thin oxide. Otherwiseit would burn aggresively...
Popularity: 32 • Tools: Recategorize
Chlorine The number of protons in an element is always the same as the atomic number, which is 17 in this case. In a neutral atom...
Popularity: 32 • Tools: Recategorize
The number of neutrons is 22 because you subtract the atomic mass from the atomic number then estimate! 18 when neutrally...
Popularity: 32 • Tools: Recategorize
they begin to conduct electricity.
Popularity: 32 • Tools: Recategorize
It looks translucent.
Popularity: 32 • Tools: Recategorize
Ur mom
Popularity: 32 • Tools: Recategorize
2,439.7 km or 2,439,700 m give or take 1,000m -from Wikipedia.
Popularity: 32 • Tools: Recategorize
The atomic numbers increase from left to right.
Popularity: 32 • Tools: Recategorize
65
Popularity: 32 • Tools: Recategorize
heterogeneous mixture
Popularity: 32 • Tools: Recategorize
it is already balanced
Popularity: 32 • Tools: Recategorize
Covalent structure elements that have covalent bonds do not conduct electricity when solid or molten.
Popularity: 32 • Tools: Recategorize
Two fluorine atoms can not form a compound they simply form a molecule of fluorine gas.
Popularity: 32 • Tools: Recategorize
Yes, as a salt, Magnesium chloride dissociates into Mg+2 and Cl- in an aqueous solution.
Popularity: 32 • Tools: Recategorize
You can look at the periodic table of the elements and determine the number of valence electrons in that element. The Alkali...
Popularity: 32 • Tools: Recategorize
The isotope 60Co: 59, 933 817 1(7)
Popularity: 32 • Tools: Recategorize
No, Sodium Hydroxide or NaOH is a highly corrosive substance and when it comes in contact with skin it causes severe burns....
Popularity: 32 • Tools: Recategorize
210 total combined
Popularity: 32 • Tools: Recategorize
Water is an example of a covalently bonded substance, consisting of one oxygen atom covalently bonded to each of two hydrogen...
Popularity: 32 • Tools: Recategorize
they say 78% of our body is made of Hcl....
Popularity: 32 • Tools: Recategorize
Yes, it consists of 4 oxygen atoms bonded to 1 sulfur atom. The whole ion has a 2- charge.
Popularity: 32 • Tools: Recategorize
A chemical formula.
Popularity: 32 • Tools: Recategorize
to make sure the water is safe to put in drinks
Popularity: 32 • Tools: Recategorize
