Water. Spirits for example, or wine, or other liquids can also be used depending on the flavour required and the dish you are making.
In order to prevent boiler from rusting (oxidation of magnetite layer) we must have to preserve the boiler with reducing chemicals like hydrazine hydrate.
Energy, in the form of heat, must.
Energy must be added or taken away.
The number 2715 needs to be added to 4691 in order to yield 7406.
A map key
Energy in various way: for example heat.
heat is added
Two phosphate groups must be added to glucose.
An anhydrate is a type of compound that is created from another compound via water loss. These are usually created from acid compounds.
water molecules must be added to each bond
In order to take a pH reading, water must be added to the solid. The water should be purified and have a known neutral pH.
must be added