Describe the main difference between an element & a compound. Be sure to include the following ideas: pure substance, combination & chemical bonds. Is baking soda (NaHCO3) classified as a mixture or a pure substance? Explain. Elements and compounds are both classified as pure substances. Cl...
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Is water classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Explain.Matter:We can classify matter in terms of its state or composition. Matter can exist in the states of solids, liquids, or gases. In terms of composit...
aThis shows that the soda residue is helpful to pozzuolana reaction. The dissociative Cl- participates in this reaction (react with reactive composition in calcareousness and loess in normal temperature to produce gelatin compound). 正在翻译,请等待...[translate]...
Public transport: Many people need to move around the city and cities in the country’s interior, so it is necessary to use this element of protection in all means of public transport. Supermarkets, shopping centers, department stores, shopping malls: These places usually gather many people in...
Boraxis a naturally occurring mineral (a compound of the element, Boron). It is a colorless crystalline solid that dissolves in water to make a basic solution. Borax is commonly available in powder or granular form and has many industrial and household uses (some listed below). It is often...
(Li) and oxygen combine to create lithium oxide (Li2O). Sometimes, a new compound might form when an element is exposed to an existing compound. For example, when pure elemental sodium (Na) is submerged into liquid water (H2O), a reaction occurs, resulting in the formation of sodium ...
The process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction Oxidation A reaction in which the atoms of an element lose electrons and the valence of the element is correspondingly increased. Oxidation The combination of a substance...
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