Chemistry
This category encompasses all questions about the composition, structure, properties, and reactions of matter.
Total questions 1014200
Falkirkdouglas [5]
wrote the first answer to Ethanol chemical structure 4 minutes ago
ID3173019859
asked Ethanol chemical structure and said it was different from What is the Lewis structure of ethanol 9 minutes ago
ID3265945554
wrote the first answer to Is SCl a polar molecule 10 minutes ago
Gimmethatcat1234 [0]
wrote the first comment on Discussion: What is the chemical messenger of the nervous system 10 minutes ago
The electron configuration of an atom is the particular distribution of electrons among available shells
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glycine, has only H as an R-group
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No. Rusting is a term generally reserved for the oxidation of iron. Processes similar to rusting also involve the oxidation of...
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0, gamma particle are high energy photons.
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if i read correctly, by dissolving chromium oxide (eskolaite) in nitric acid. the mixture also requires a certain amount of...
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Do you mean 0.001 M H3O ? -log(0.001 M H3O) = 3 pH
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No, insoluble in toluene because that is not a polar solvent like very polar water.
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covalent bonds are where the electrons are shared (usually with two nonmetals) and ionic bonds are where the electrons have been...
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water cannot boil at 60 degrees (Fahrenheit or Celsius). at least on earth. but if you water on earth is kept liquid not just by...
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mass and weight
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No sir (or ma'am)! Hydrogen (H-bonds) can only be formed when there is a hydrogen attached to either a Nitrogen, Oxygen, or...
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because they have a completely filled configuratin and are stable.So they acquire stability and will not bond with any other atom...
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To be balanced it would be: 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
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Rust is the common name for a very common compound, iron oxide. Iron oxide, the chemical Fe2O3, is common because iron combines...
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Isotopes Isotope is the word we use to talk about two different forms of the same element that have different numbers of neutrons...
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Inert pair effect is a term often used to describe valence electrons in an s orbital penetrating to the nucleus better than...
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An etchant for CVD W is SC1 (5:1:1 DI:NH4OH:H2O2) at 40°C. 500 angstroms per minute.
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In general, ionic compounds occur when a metal ion and a nonmetal ion make a compound. When they are a compound, electron(s) are...
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Severity! Anaphalaxis is the true allergic reaction that is a medical emergency (call 911/999/112) and pray! The throat and lower...
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Yes, it has a metallic structure and is magnetic. It is the only non-metal to be magnetic!
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Copper has many uses, among which are: coinage electrical wiring water supply and drainage pipes roof flashings and roofing...
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I know this isn't an answer but i hope somebody does answer this so i can get help to?
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Burning paper or anything else is a chemical change.
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It is the number of atoms in the preceding element.
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Skin is made up of 2 distinct principle layers called the dermis and the epidermis. The epidermis is much thinner than the dermis...
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As I am a layman in this area, this answer will be partial until improved by a pro. There could be many reasons for a high...
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Yes, pure sodium hypochlorite is corrosive, as it has high oxidizing powers
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Its name is barium nitrite. The formula is Ba(NO2)2
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A chemical change is taking place.
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Well that's what our books say! Approx=1.6 x10^-19 coulombs
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Lotion is a mixture of chemical compounds. There is no chemical formula for a mixture, but if you look at the bottle, you will...
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The difference is that a saturated hydrocarbon contains all single bonds: each carbon is surrounded by 4 hydrogens, and is thus...
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Chlorine is highly reactive. It forms ionic bonds like NaCl and CaCl2 and displaces hydrogen in organic compounds.
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producers incorporate chemicals from non living environment into organic compounds consumers feed on producers incorporate...
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That is because they consist of ions, and water is polar.
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I believe its from the vinegar!
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The transition from the liquid or solid phase to the gas phase.
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No. Laughing gas is nitrous oxide. There is only helium inside a helium balloon.
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monofluorophosphate was theman that invented sodium fluoride
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1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3.
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1/10 1cm=10mm so 1mm = (1/10) cm
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According to the definition of an exo/endo-thermic compound, all metallic oxides (rusty metals) are exothemic compounds, since...
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not all foods desolve only the most delecate you're welcome
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Sodium laureth sulphate is both ionic and covalent: It contains sodium ions and laureth sulphate ions, but the latter type of...
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brute fomula: C3H80 semi structural: CH3-O-C2H5
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If I understand it right, an acceptor atom is that one which accepts the electrons, then it has positive charge and thus it is...
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because its bonds (two bonds between O and H) are highly polar (33% ionic) and thus it creates hydrogen bonds and electrostatic...
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In photochemical reaction we have photons that passed to the surface starting photochemical reaction - producing some electrons....
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Metal: Sodium Nonmetal: Carbon Metalloid: Germanium
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Molecular oxygen (O2) contains two oxygen.
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Solubility is a property of matter. If something dissolves in something else, however, it is not, properly speaking, a chemical...
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As per the Bhargava formula, the companies should have to distribute nearly 50 per cent of their profits among the cane farmers.
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The density of water is important because when water is frozen it expands which is significant for the sustaining of marine life....
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There is are no such things as HCI or HaOH I think you mean HCl (with a lowercase L) and NaOH (with an N) What you are looking...
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surface tension
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2H, the other stable hydrogen isotope, is known as deuterium and contains one proton and one neutron in its nucleus.
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Isotopes of the same element (ie silver) show the same chemical properties but slightly different physical properties. This is...
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An isotope's mass number is the sum of the protons and neutrons in each atomic nucleus of the isotope.
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US $ 51,5/lb (at 25.07.2011) or 11,3 US $ per 100 grams (natural uranium in the form of the unrefined oxide U3O8).
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Yes because different kinds of candy have different types of substances in them and different kinds of substances melt at...
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The formula is Cu(NO3)2 and is called Copper (II) Nitrate. See attached link for more information.
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No , it's a chemical compound!
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Yes, a solute can be any of those phases. Here's an example: salt (NaCl) is a solid that dissolves in water; ethanol is a...
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Cyanide and nitriles can be grouped together. A nitrile is an organic compound that contains a cyanide (CN) group. However,...
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Because it wants to be rare.....lol....idk
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Fu - futonium Au - AustrliumNi - NigeriumLe - Lesbonium
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Four: 2x2 = 4 C atoms in 2C2H4 (= two molecules C2H4)
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Chlorine is used to clean the water and kill bacteria in the water. It is used in pools to clean the pool and act as an algaecide...
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non metal because they used it for pipes in the 1800's.
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they can be held together by ionic, covalent, or metallic bonds
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Neon is a monatomic gas (1 atom/entity), so finding the number of atoms is as simple as multiplying the quantity of gas by the...
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The synthesis reaction forming oxides of iron are two in nature. One with iron at a oxidation state of II and one at the...
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Yes, the reaction is: MgCO3 ----------- MgO + CO2
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Yes. Melting point is changing from a solid to liquid & freezing point is changing from a liquid to a solid. Both occur at...
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because the first ionization energy and the second ionization energy of magnesium is relatively low, which means magnesium could...
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Physical properties are those that can be observed without changing the identity of the substance. The general properties of...
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Any physical matter can be considered a chemical. Chemical reactions are of two types. The more common reactions revolve around...
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Robert Millikan measured the charge on an electron. To do this, he built a spray to spray oil droplets. As the droplets came out...
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He lined them up according to their properties and other characteristics First, John Newlands looked at the atomic masses of...
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The "W" after the first set of numbers stands for winter. The lower the number, the lower the actual air temperature can be and...
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Based on chemical properties exothermic phase changes are those that release energy. The exothermic phase changes are gas-->...
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Air bubbles and other impurities make them look cloudy.
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the base of an evaporating dish is rounded and will not be stable when placed on a gauze, hence a triangle (tripod) to hold its...
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AnswerAccording to my chemistry book, Chalk is a compound because the different elements that are in it are bonded and can not be...
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There are many methods of purifying water. This question is pretty vague but I'm going to assume you are asking in reference to...
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