Limestone is widely used to prepare cement, calcium hydroxide or as building material.
the equations are backward but are the same molecules or substances being used
Hygroscopic substances can absorb water easily; they are used for the drying other substances or to extract water from boxes, containers, packagings, etc.
Opaque substances that are used to color other materials are called pigments. Some call them dyes.
pigments
Lime is not used in jam. Lime used to be used in pickles to make them crisp. However, the USDA no longer recommends using lime in food processing for home preserving.
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Matter
Surprisingly Water is used as a solvent and is commonly considered the "Universal Solvent". This is due to it being the liquid that can dissolve the most substances out of any other liquid.
We can use for example methane gas but other fuels are possible.
Lime was used in building houses.
Thermite, the iron melts.
Lime is a compound.