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16.07.2019 •
Chemistry
Aluminum can react with oxygen gas to produce aluminum oxide (al2o3). what type of reaction is this? single–replacement synthesis double–replacement decomposition
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Ответ:
synthesis
Explanation:
1. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
Example:![Zn+2HCl\rightarrow ZnCl_2+H_2](/tpl/images/0096/6466/fadce.png)
2. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.
Example:
3. Double displacement reaction is one in which exchange of ions take place.
Example:![2NaOH(aq)+(NH_4)_2SO_4(aq)\rightarrow 2NH_4OH(aq)+Na_2SO_4(aq)](/tpl/images/0096/6466/58f52.png)
4. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.
Example:![Li_2CO_3\rightarrow Li_2O+CO_2](/tpl/images/0096/6466/c9034.png)
Ответ:
Those with 3 protons and 3 neutrons are known as the isotope lithium-6. Those with 3 protons and 4 neutrons are known as the isotope lithium-7.
Explanation: