Chemistry
This category encompasses all questions about the composition, structure, properties, and reactions of matter.
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lipids have the property of a non polar mix with oils and fats, and the polar mix with the water thus pulling the fats into the...
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silicon dioxide is a compound and diamond is an element
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Definitely not. :) 1000 grams go into 1 kg, so 9.31 grams is definitely NOT 931 kg's. 931 kg's would be 931 000 grams
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nadh2 is a cofactor that receives electrons from nad an another cofactor reducing itself and undergeos providing ATP to the cells
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Thermite is a high-temperature incendiary composition that can successfully reach temperatures of 2500 degrees Celsius. A...
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Iron is a very strong and durable metal and thus allows us to construct bridges.
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final velocity v of an object which starts with velocity u and then ... vector w, then the velocity of object A relative to...
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It is a gas and it doesn't really have a pure substance that you can see.
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When no more magnesium metal was seen. Or when no more Hydrogen gas was produce
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Potassium and bromine will form an ionic bond.
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mercury oxide + oxygen -> mercury + oxygen
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No, they are not additive. For example, 1 ml of water added to 1 ml of ethanol will not equal 2 ml total volume.
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Equilibrium: NO2- (aq) + H2O <-> HNO2 (aq) + OH- (aq)
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If we take a closer look at laboratory testing of the wave theory we find that tests conclude that, "Matter behaves differently...
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There should be something on the balloons packaging with that informateion but just get a bike pump and blow the balloon up as...
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When plastic is burned it generates poisioness gas such as corbondioxide, carbon monoxide,dioxines and carcinogenic gases whic...
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Metals found native in the ground are metals which are so unreactive that they are still found unchanged or "native"
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Covalent; all of its bonds are covalent and it does not contain ions at all.
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It does not react in water, so it becomes Diluted Ammonium iodide
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pharmacy, forensic investigator, and drug analysis. :)
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Polyester is a category of polymers, but in common parlance, the word typically refers to polyethylene terephthalate. Fabrics are...
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I found in the tables of G. Audi, A. H. Wapstra and C. Thibault seven isotopes having a mass of approx. 264: 102No, 103Lr, 104Rf,...
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Can and does. Rust is the combining of iron (Fe) and oxygen. Water speeds the process, but isn't required.
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when in food, it enters the body by ingestion. when ingested , it is safely secreted out of the gastro-intestinal tract without...
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Some items that contain Fluorine are Rocketfuels, some plastics, and Toothpaste.
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it is a mixture of alkanes between 6 and 16 carbons therefore non polar.
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Iodine was discovered by the French chemist Barnard Courtois in 1811.Iodine is a bluish-black, shiny solid. Although it is less...
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it's a transformation from a solid t oa liquid Hope it's a little helpful!:(:)
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Tea Coffee Water! Hydrochloric Acid and vinegar
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It is ionic, so therefore it could be called polar.
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Gas has more entropy.
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Without seeing the curve, we can't answer this.
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Sodium Carbonate or soda-ash is quite a strong base. A 10% solution would be pH 14
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They are equivalent.
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If the solute isn't very soluble, the solution can be saturated and still have very little solute in it, so it would be dilute.
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Cheap, easy, fast, and food tastes fresher.
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HI, I'm Elham .As i found it's: ZnSO4+Br(NO3)2..........Zn(NO3)2 +BrSO4
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anything containing loose electrons such as steel, copper, silver, gold, and good old water
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Henry Cavendish: mixed 2 hydrogen atoms and 1 oxygen atom in a test tubes. This causes a pop (explosion), and water is formed.
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the reaction will be fast
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The permanganate ion is MnO4-
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Sodium chloride is common table salt. It is also used to defrost ice on roads.
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none of them actually dissolve completely but i found iris to be the best
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Platinum has one electron on the outer shell.
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An atom of Sodium weighs the same as 23 protons.
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No, strontium is more reactive than beryllium.
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No. BI3 has a trigonal planar geometry. This means the molecule is symmetrical, and any polarity among the bonds will cancel...
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1. Thong or clipmust be use when to weight or transfer the crucible because to avoid it absorb excess moisture from hand and this...
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No, iodine is a violet coloured solid on heating it sublimed into violet gas.
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This question is not very simple. Uranium used as fuel in nuclear reactors is not all burned completely when it is no longer...
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50 billion the person above is wrong but im not sure how many there are.
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A triglyceride contains three fatty acids that are composed of hydrogen, carbon and oxygen. In a single free fatty acid if there...
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how do you write a balanced chemical formula for this question CaO + H2O ---> Ca(OH)2
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Increases
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Ion exchange itself is an adsorption reaction too. The question is probably about the difference between ion exchange and...
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It can be used in medicine, they use a radioactive isotope of a very short half life to help diagnose medical...
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Water reaches its maximum density at 4ºC, at which point it is still liquid. At that temperature its density is 1 gram per...
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The compound sodium acetate is C2H3NaO2, so each formula unit has 2 oxygen atoms.
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Nitrogen dioxide.
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vegetables and oils
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They're all nonmetals.
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It's from the French: pouvoir hydrogen (literally, the Power of Hydrogen).
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There are 92 elements that exist in nature*. Every heavier element has decayed before our time. Of course, there are more...
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NaOH sodium hydroxide and H2CO3 carbonic acid may be constituents of baking soda.
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The electronegativity of fermium is supposed to be 1,3 - in the Pauling system.
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positive, negative, and neutral
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Two. Because the 1st shell is composed of a 1s atomic orbital.
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Yes, because a gas is burned - an oxydation reaction. This chemical reaction produces heat as well as carbon dioxide and water...
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An object will float in a body of liquid if it is less dense. Density = mass/volume.
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Essentially heat is a measure of the kinetic energy of the molecules. Therefore if a molecule is at any temperature above...
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1 mole = 6.02 × 1023 atoms 4.31 moles × (6.02 × 1023) = 2.6 × 1024 atoms carbon
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yesCitric acid in milk products is only an additive from other sources; it is not a natural product of fermentation.
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Vinegar and Baking Soda both equally react in the same rate.
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Potassium, K, has an electron valence of +1, meaning that it can only one electron from another element or ionic compound....
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yes, but depending on what level of chemistry your in your teacher might tell you other wise to lessen your confusion. Chances...
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13,450mph Source chemisty
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Pumping H+ against its concentration gradient.
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When a sodium atom becomes an ion it loses one electron, giving it a 1+ charge.
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Methane can be protonated by superacids to the carbonium ion:H+ + CH4 -> [CH5]+So methane is a Lewis base but, like helium, it...
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Yes it is a polar molecule, it can be dissolved in water, and it is balanced.
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Because there maybe sources of error in the measurement of pH. Even if you try to eliminate the sources of error, you may get...
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Carbon has for valence electrons for forming covalent bonds.
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