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Chemical Equations

~2800 answered questions
Parent Category: Chemistry
A chemical equation is defined as the short-hand representation of a true chemical reaction with the help of symbols and formula. In this category, there are questions relating chemical equations, symbols and formula.

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Write the unbalanced equation. Chemical formulas of reactants are listed on the lefthand side of the equation. Products are listed on the righthand side of the equation. Reactants and products are separated by putting an arrow between them to show the direction of the reaction. Reactions at e…
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The aluminum combusted with oxgen forming aluminum oxide...the reaction formula is:4Al + 3O2---> 2Al2O3
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Cu + 2 H2SO4 ----> 2H2O+ CuSO4 + SO2Rebalanced by Graphyx
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it must be cleared that while writing a chemical equation... it must be in symbols of that element then the numbers of the atoms used in the reaction must be equated to both the sides that is it must be equal to right hand side as well as left hand side... we need to remember the symbols of that el…
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A balanced chemical equation shows the proportions of reactants and products necessary for the reaction to occur.
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The chemical formula for Nitrous Oxide is N20
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First of all, it is HCl solution, more properly hydrochloric acid (that is HC l ). It is composed of hydrogen (H) and chlorine (Cl). The answer depends on the volume of the acid and the concentration of the alkali. Here is a sample calculation with some random values for the variables you have not …
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The BaSO4 (barium sulfate) will precipitate out of solution because it is insoluble, whereas the KCl2 is soluble and will remain dissolved. The balanced equation is: K2SO4 + BaCl2 -----> 2KCl + BaSO4
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H2O + 2NO2 -----> HNO3 + HNO2 a mixture of nitric and nitrous acid. The nitrous acid gets further oxidized by oxygen to nitric acid.
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4Fe + 3O2 + 6H2O ---> 4Fe(OH)3 The chemical equation for rusting of iron is :-2Fe + 3/2 O2 ----> Fe2O3.xH2O
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ATP ---> ADP + Pi + Energy it's a coupled reactionTHIS ANSWER IS WRONG - IT IS BACKWARDS! IF YOU MAKE THE ARROW GO IN THE OPPOSITE DIRECTION, IT WOULD BE CORRECT.
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Balancing Chemical Equations is absolutely essential if you want to determine quantities of reactants or products. An unbalanced chemical equation gives only the identify of the beginning reactants and the final products using the appropriate formulas as well as the conditions of temperature, physic…
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Word Equation for Lithium and water- Lithium + water ---> lithium hydroxide + hydrogen + lots of heat.
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The formula for glucose is C6H1206. Glucose is a simple aldosic monosaccharide found in plants. It is a monosaccharide that is absorbed directly into the bloodstream during digestion.
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First need to either write down the equation if it's complete e.g. PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O or try to fill out an incomplete equation e.g. Ca(OH)2 + H3PO4 = ? If you get this, try figuring out the products, for this equation, it would be Ca(OH)2 + H3PO4 = CaHPO4 + H2O …
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Sodium carbonate solution is basic in nature after acid hydrolysis of polysaccharide sodium carbonate is added in test tube to neutralize acidic effect and to rise the ph value with the evolvement of carbondioxide gas the reaction between sodium carbonate and hcl gives rise to sodium bicarbonate and…
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Coal is made up from different elements: primarily carbon but also containing hydrogen, sulfur, oxygen, nitrogen, inorganic compounds. Coal is a complex mixture: no "equation" or chemical formula.
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Fe + 2H20 ---> Fe(OH)2 + H2(g)
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A balanced equation shows how many moles of each reactant is needed to form a certain number of moles of product.
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An unbalanced equation represents mass either appearing or disappearing. Since tht is impossible, the equation must be balanced.
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chemical equations are a formal algebra that permits the calculation of chemical reactions.
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The subscript in the equation tells you how many atoms of that element there are in the reaction.
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C2h5oh + h2so4..........................>c2h4 + h2o
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A balanced equation contains equal numbers of each elements on the reactant and the product side of the equation.A balanced chemical equation contains equal numbers of each element on the reactant and on the product side of the equation 2H2 + O2 → 2H2OA balanced chemical equation is when both the …
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Ch4 + 2o2 => 2h2o + co2
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dosen't you soppesd to use A B C D E lettera
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Al + N2
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Typical mixing have not a chemical ecuation.
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2Mg + 1/2 O2 -----> MgOIt is simply senseless to have half a mole of Oxygen and that still does not make it balanced by adding the 2 in front of Magnesium. A better way for it to be written is this:2Mg + O2 à 2MgO
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Write the unbalanced equation.Chemical formulas of reactants are listed on the lefthand side of the equation.Products are listed on the righthand side of the equation.Reactants and products are separated by putting an arrow between them to show the direction of the reaction. Reactions at equilibrium…
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The chemical formula for Ethanol is: C2H5OH The chemical equation for the combustion of Ethanol is:C2H5OH + 3O2 -> 2CO2 + 3H2O
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in practice ,i found that :aluminum powder(pure metal)+potasa (solution)..=potasium aluminate+high amount of heat liberated +wet hydrogen (mixed with water vapor) PROJECT STUDY : How to manipulate this equation to make use of the products gained ? 1-) Hydrogen (drying plant) 2-)potasium aluminat…
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Chemical Equation For Salt Salt is Sodium Chloride so: NaCl. The word equation for salt is: Sodium + Chlorine = Sodium Chloride OR The chemical equation is: Na + Cl = NaCl
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The reaction between hexene, bromine, and water is an addition reaction resulting in the formation of a bromohydrin. The reaction is as follows: 1-hexene + bromine --H2O---> 1-bromo-2-hexanol CH2=CH(CH2)3CH3 + Br2 (aq)----> CH2BrCH(OH)(CH2)3CH3 If stereochemistry is specific, anti-addition…
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Answer Zinc+sulphuric acid-sulphate+hydrogen
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According to the "LAW OF CONSERVATION OF MASS" mass of atoms or molecules in the reactant side should be equal to that in the product side. So a chemical equation have to be balanced...
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a chemical equation shows reactants and products.
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Lactose is C12H22O11. Lactase can have many different equations.
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As no chemical equations create or destroy new molecules, both sides need to be balanced to show the same amount of each element is on either side of the equation.
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if u want to gate Ur answer than u first u have to know about molecular formula and balance it with the number of atoms of the elements
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This is one of the funadmental laws of chemical reactivity. As you may already know, both energy and matter cannot be destroyed; this means that reactant in a given reaction have a set number of particles (atoms). The number of particles that will be found on the other side of the equation (the prod…
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It reads as "Yields." The equation is set up as (reactants) (Yield Sign) (Products).
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All of the symbols used in chemical equations are up on the periodic table. I hope that helps. Actually there are a number of additional symbols used besides those found on the periodic table. Some of these include: (s) means the substance is in a solid state (g) means the substance is in a gaseo…
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bum bumbum bum bum.
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N.............. i think :)
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There has to be the same amount of atoms of each element on each side of the equation.
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This cannot be given as a single formula, oil can be any of several long chain hydrocarbons, long chain fatty acids, or any mixture of any of these. If you can be more specific on the type of oil a specific answer might be possible.
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You can't change the subscript. The subscripts show how the elements/molecules are bonded.     -------------------------------------------------------------------------------------------------------- The subscripts represent the number of atoms of each element in each chemical formula…
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2Fe(s) + 2H2O(l) + O2(g) ==> 2Fe2+(aq) + 4OH-(aq) This is the equation for rust. ---- NOT EXACTLY Rust is a solid, it doesn't exist as ions in solution. Also, in rust, iron is in the +3 oxidation state. There are three common forms of rust. Rust formed under water is Fe(OH)3. Rust formed in hum…
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Answer Hydrochloric Acid + Potassium Hydroxide = Potassium Chloride + Water
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the law of conservation of mass
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Ionic equations differ from chemical equations in that substances that are ions in solution are written as ions in the equation
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i can answer this question. must be balancing equations is important. many people have asked "how does Jonathan do it?" likewise, "why is copper blue?" you can practice with this simple reaction C30H46O3 (moronic acid) + C4H5As (arsole) = ? for more fun with reactions, ask ms. dwelley. fun fact…
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When a chemical reaction occurs, it can be described by an equation. This shows the chemicals that react (called the reactants) on the left-hand side, and the chemicals that they produce (called the products) on the right-hand side. The chemicals can be represented by their names or by their chemica…
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Ca(OH)2 Ca needs two more electrons to have a full outer shell, OH needs one electron to have a full valence. So in order to have a ratio of 1:1, you need 2OH.
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they both deal with symbols
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well sodium something
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Water reacts with carbon dioxide to form Carbonic acid : CO2 + H2O ---> H2CO3Though this acid isn't too much stable, it has devastating effects at plants, limestone, soil, ect..
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Chemistry is a quantitative science, keeping track of the components in a reaction is only really feasible if everything is accounted for. consider O2 + H2 = H2O (unbalanced) Placing a 1/2 in front of the O2 yields important information, it shows that overall to produce the water molecule you will…
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Answer The number of molecules of reactants or products. For instance: 2 H2 + O2 > 2 H2O means that two molecules of hydrogen react with one molecule of oxygen to produce two molecules of H2O (water).
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Oxidization
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The chemical equation for putting an egg in vinegar is 'CaCO3(s)+2CH3COOH(aq) --> Ca(CH3COO)2(aq) +2H2O(l)+CO2(g)'. The eggshell is usually noted as 'CaCO3.'
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C6H5CH(CH3)2 + O2 → C6H5OH + OC(CH3)2 CH3COCH3
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Whether you are still in school or have turned science into a profession, it is important that you know the following three requirements when you are writing out a chemical equation. The formula has to contain just facts. There must be correct formulas for all elements present. Finally, the formula …
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The eqn is NaHCO3+H2SO4= Na2SO4+H2O+CO2
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Matter is conserved in a chemical reaction, meaning nothing "disappears" when compounds react. Accordingly, the number of atoms you start with has to be the number of atoms you end with. Similarly, no element can become another element, so there must be the same number of each kind of atom at the st…
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NaHCO3 + C2H4O2 --> NaC2H3O2 + H2CO3 --> NaC2H3O2 + H2O +CO2 soda + vinegar -> sodium acetate + carbonic acid -> carbon dioxide
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Fe.
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The molecular formula, or chemical equation, for the substance butane is C4H10. This means that it contains 4 carbon and 10 hydrogen.
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Sodium + Iodine ----> Sodium Iodide 2 Na + I2 ----> 2 NaI
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C6H12O6 + 6O2 -> 6CO2 + 6H2O + 36 ATP's .
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law of conservation of matter = matter cannot be created or destroyed
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subscripts define the ratio of atoms to atoms, or ions to ions in a compound. they are set by the valence electrons, they only fit in certain ways.why change them other than to make balancing equations easier.balancing equations is not supposed to be too easy, just work harder at it.don't adjust the…
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Glucose + Oxygen = Carbon Dioxide + Water + Energy C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy
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A general one is................ SO2 + H2O -> H2SO4 unbalanced; sulfur dioxide + water = sulfuric acid
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the first one i can come up with is the equation for photosynthesis.Listing all reactants and products, photosynthesis can be described as: 6 CO2 + 12 H2O → C6H12O6 + 6 O2 + 6 H2O But because water is both a reactant and a product, the equation can be simplified accounting for net water consumpt…
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There is no equation for Sulfur, it is an element with the symbol S and that is all. Equations are used to represent chemical reactions and formulas are used to represent chemical compounds. Elements just have a symbol because they only contain one sort of atom.
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NaHCO3 + HC2H3O2 --> NaC2H3O2 + H2O + CO2 This formula includes the immediate decomposition of carbonic acid into water and carbon dioxide. The reaction is endothermic.
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Hydrogen trioxide. one hydrogen three ( or trio) oxygen Save
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Al + NaOH Um this is the "equation" of aluminum and Sodium Hydroxide... Na2CO3(aq) + NaOH (aq) --> NO reaction Sodium carbonate + Sodium hydroxide yields no visible reaction
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In a chemical reaction atoms can not be created or destroyed You can not change the formula of a compound Any metals are single atoms unless in a compound The following elements go around in pairs unless in a compound - fluorine -chlorine -bromine -iodine -oxygen -nitrogen -hydrogen Here …
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Balancing Chemicals A chemical equation is balanced when each side has equal amount of each atom. To balance this we must multiply upon both sides. If we have two chemicals we need to add... keep a space in between. If they will be multiplied, keep them together. H2 +O2 -----> H2O To bal…
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You probably mean chemical formula. Shampoo does not have a chemical formula because it is a mixture, and different shampoos have different compositions.
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Na2CO3 + 2HCl --> 2NaCl + H2O + CO2Products: Sodium Chloride, Water and Carbon Dioxide.
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Mg(OH)2 (s) + 2 HCl (aq) > MgCl2 (aq) + 2H2O (l)
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Mg2 HCl= Mg+HCl2 ______________________________ Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) That should be correct. The topmost answer is the decomposition of MgHCl, it looks like.
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Well, water is H2o and methanol is CH3OH
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