Identify the type of reaction below:Mg + 2 HCl --> MgCl2 + H2
Question
Identify the type of reaction below:Mg + 2 HCl --> MgCl2 + H2
Solution
The reaction given is an example of a single displacement reaction. In this type of reaction, one element replaces another element in a compound. Here, magnesium (Mg) displaces hydrogen (H) in hydrochloric acid (HCl) to form magnesium chloride (MgCl2) and hydrogen gas (H2).
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150 mL of hydrochloric acid of the same concentration is poured into each of two flasks (A and B).10 g of magnesium (Mg) is added to each flask.Bubbles of hydrogen gas are seen in each flask. The reaction in flask A stops sooner than in flask B.When the bubbling in both flasks stops, no solid magnesium is visible in either flask.Question promptWhat is the balanced chemical equation for this reaction?Question response areaSelect one optionMg + 2HClMgCl2 + H22Mg + 2HCl2MgCl + 2H2Mg + HClMgCl + H22Mg + 2HCl2MgCl + H2
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