In nutrition, certain foods have an acidic effect on the body after consumption, and certain foods have an alkaline effect. Plant foods, such as ginger, are the most alkaline-promoting foods. Ginger has a pH of 5.6 to 5.9, similar to that of figs, fennel, leeks, parsnips and romaine lettuce.
The reaction between aluminum and bromine is very exothermic (DH o = -1022 kJ). This drives the entire process, and energy is given off in the form of light and heat: 2 Al (s) + 3 Br 2 (l) --> 2 AlBr 3 (s) The product of this reaction is a molecular solid with the formula Al 2 Br 6, but the formula is often written as AlBr 3.
A chemical reaction involves a chemical change, which happens when two or more particles (which can be molecules, atoms or ions) interact. For example, when iron and oxygen react, they change to a new substance, iron oxide (rust). Iron oxide has different chemical properties to iron and oxygen.