Problem page solid magnesium carbonate decomposes into carbon dioxide gas and solid magnesium oxide . write a balanced chemical equation for this reaction.

                  MgCO₃   →    MgO  +  CO₂

                    Chemical Formula of Magnesium Carbonate  =  MgCO₃

                    Chemical Formula of Magnesium Oxide  =  MgO

                    Chemical Formula of Carbon Dioxide  =  CO₂

Step 1: Write the unbalance (if present) chemical equation:

                                             MgCO₃    →    MgO  +  CO₂

Step 2: Calculate and balance number of atoms on each side:

Magnesium Atoms:

                              As there is one Mg on left hand side and one Mg atom on right hand side. Therefore, Mg atoms are balanced.

Carbon Atoms:

                       There is one C atom on right hand side of the equation and one C atom on left hand side of the equation. Hence, C atoms are balanced too.

Oxygen Atoms:

                        Oxygen atoms are also balances i.e. three atoms on both sides each.

                   Hence, 1 mole of MgCO₃ on decomposition produces 1 mole of CO₂ and 1 mole of MgO.

i can ! i just need to know what the paragraph is! : p

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.