Explanation:
A double replacement or double decomposition or metathesis reaction is a reaction which involves the actual exchange of partners to form new compounds.
AB + CD → AD + CB
Examples are neutralization reactions, precipitation reactions e.t.c
Characteristics and identification:
- Formation of insoluble compounds called precipitates.
- Formation of water or any other non-ionizing compound
- liberation of a gaseous product.
Type of compounds in the reactants and products:
The reactants involved are always ionic compounds that are joined by electrovalent bonds. These compounds will produce ions in solutions.
The products are usually;
- Insoluble precipitate
- Gases
- Water
Learn more:
Precipitation brainly.com/question/1870098
Neutralization brainly.com/question/6447527
#learnwithBrainly
The question is in another language, so the English translation of the question is as follows:
Is salt-water a hom.ogeneous or heterogeneous mixture?
Answer:
Hom.ogenous mixture
Explanation:
There are two types of mixtures hom.ogenous and hetergenous. a heterogeneous mixture has two or more visible phases while a hom.ogeneous mixture is composed of a single visible phase.
The salt-water is hom.ogeneous because the solve dissolve evenly in throughout the entire salt-water sample and gives visible phase.
Hence, the correct option is "hom.ogenous mixture".
Answer:
14 neutrons
Explanation:
Mass - Atomic Number = Neutrons
Answer:
Thermite Reaction
Explanation:
The reaction between iron(III) oxide and aluminum produces aluminum oxide and iron. The chemical equation of the reaction is: This reaction is known as a thermite reaction and is highly exothermic. The large amount of heat released is enough to melt oxygen and aluminum.
Sodium carbonate.
Hope this helps