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21.10.2020 •
Chemistry
Magnesium can interfere with the measurement of the calcium concentration in water samples using colorimetric tests. Write a balanced chemical equation for the reaction of dissolved magnesium chloride with sodium hydroxide to form magnesium hydroxide as a precipitate and sodium chloride. (Reactants -> Products)
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Ответ:
Explanation:
Hello.
In this case, since aqueous magnesium chloride reacts with aqueous sodium hydroxide, a precipitate product, magnesium hydroxide is formed as well as aqueous sodium chloride as shown below:
However, since there are two chlorine atoms at the reactants we need a 2 before NaCl on the products in order to balance it. Moreover, there one OH at the reactants and two OH at the products, that is why we also add a 2 before NaCl as shown below:
Best regards!
Ответ:
The right answer is Chloroplast.
The chloroplast is a specific organelle of plant cells, probably derived from an endosymbiosis event of a cyanobacterium by a primitive eukaryotic cell. The chloroplast is indeed separated from the cytoplasm by a double membrane, two membranes separated by an intermembrane space.
Inside, the chloroplast consists of a stack of thylacoids, which bathe in the stroma (intrachloroplastic fluid).