Chemical Equations

Put a little hydrochloric acid in the water sample.

2HCl + Pb -> H2 + PbCl2.

Lead chloride is insoluble and its density is much higher than that of water. You can then perform a test on the precipitate to determine the ratio of lead chloride to silver chloride in your precipitate.

The chemical equation for this reaction is:

2 HCl(aq) + O2(g) → 2 Cl2(g) + 2 H2O(l)

Rainwater absorbs atmospheric CO2, becoming carbonic acid.

This flows through the discontinuities in the rock from sink to rising, dissolving the calcium carbonate that is limestone's main constituent.

Cl2 + 2LiBr -> 2LiCl + Br2

A balanced chemical reaction obeys the law of conservation of mass, because the same number of atoms of each element must appear on both sides of the equation for the reaction, and in any actual reaction, the same exact atoms will be found on both sides of the equation.

Na2S + Hg(NO3)2 -> 2Na(NO3) + HgS

^ Na is Sodium and its not even in the equation so the balanced equation is:

Hg2SO4 + NH4NO3>>>>Hg2NO3+SO4

I'm Assuming you mean mercury(i) sulfate+ ammonium nitrate? if so:

Hg2(SO4) + 2[(NH4)(NO3)] ----> 2[Hg(NO3)] + {[(NH4)2] (SO4)}

& it's a double replacement reaction

(Since most people just come here to get quick answers for homework, I'm not going to bother explaining how to get that.)

The chemical equation for the reaction between liquid carbon disulfide and oxygen gas to produce carbon dioxide and sulfur dioxide is:

CS2(l) + 3O2(g) → CO2(g) + 2SO2(g)

iron + sulphur -> iron sulphide Fe + S -> FeS

C2H5OH +3O2 gives 2CO2 +3H2O ...it burns with ablue flame in air

There has to be the same numbers and types of elements on both sides of the equation. This is accomplished by adding coefficients in front of the chemical formulas as needed. Never change a formula when balancing an equation.

The main ores of aluminum are bauxite, diaspore, and gibbsite. The chemical equation for extracting aluminum from bauxite involves the Hall-Héroult process, where aluminum oxide is dissolved in molten cryolite and then electrolyzed to extract pure aluminum. The equation is: 2 Al2O3 + 3 C → 4 Al + 3 CO2.

The balanced chemical equation for the reaction of lead foil with silver nitrate solution is:

2AgNO3 + Pb --> Pb(NO3)2 + 2Ag

This reaction forms lead(II) nitrate and silver.

Subscripts state how many atoms and Coefficients state how many molecules there are. So when balancing an equation you always adjust the coefficients.

When this equation is balanced, what is the coefficient for Ni(NOËÄ)ËÄ? 4

Ca(NO3)2 + (NH4COO)2 = Ca(COO)2 + 2 NH4NO3 Calcium oxalate is a white precipitate.

C6H5CH=CH2:

chemical formula: C8H8

Assuming no involvement of nitrogen:

C8H8 + 10 O2 -> 8 CO2 + 4 H2O

The chemical equation for phosphoric acid is H3PO4.

The balanced chemical equation for limestone (calcium carbonate, CaCO3) being heated strongly in air is: CaCO3(s) → CaO(s) + CO2(g)

The balanced chemical equation for the reaction between barium nitrate and sodium hydroxide is:

Ba(NO₃)₂ + 2NaOH → Ba(OH)₂ + 2NaNO₃

A chemical reaction is a process that results in the transformation of chemical substances into new substances with different properties. A chemical equation represents this reaction using chemical formulas of the reactants and products, along with their respective coefficients to balance the equation.

During photosynthesis, carbon dioxide and water are converted into glucose and oxygen in the presence of sunlight and chlorophyll. The overall process can be summarized as: carbon dioxide and water react to form glucose and oxygen with the help of light energy.

The chemical equation for the flame test for borax is:

Na2B4O7·10H2O (borax) + heat → Na2O (sodium oxide) + B2O3 (boron trioxide) + H2O (water) + light emissions (color changes in flame)

Chemical equations provide a written representation of a chemical reaction by showing the relationship between reactants and products. While they do not have a physical structure like molecules, they are structured to follow the law of conservation of mass and allow scientists to understand the stoichiometry of a reaction.

A math equation uses variables and numbers, while a chemical equation uses compounds and mole ratios.