An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
The reaction M g + S → M g S involves combining Magnesium and Sulfur.
A synthesis reaction is defined as the combination of two or more reactants to form a single product.
The given reaction fits the definition of a synthesis reaction.
Therefore, the type of reaction is \boxed{synthesis}.
Explanation
Identifying the Reaction The given reaction is M g + S r i g h t a rro wM g S . We need to identify the type of reaction from the given options.
Defining Reaction Types Let's define each type of reaction:
Polymerization: Many small molecules (monomers) combine to form a large molecule (polymer).
Synthesis: Two or more reactants combine to form a single product.
Replacement: One element in a compound is replaced by another element.
Decomposition: A single reactant breaks down into two or more products.
Matching the Definition In the given reaction, Magnesium ( M g ) and Sulfur ( S ) combine to form Magnesium Sulfide ( M g S ). This matches the definition of a synthesis reaction.
Examples
Synthesis reactions are fundamental in creating new materials. For example, in the construction industry, cement is produced through a synthesis reaction where calcium oxide reacts with water to form calcium hydroxide, which binds the other components of cement together. Similarly, in the pharmaceutical industry, many drugs are synthesized by combining simpler molecules into more complex ones with specific therapeutic effects. Understanding synthesis reactions helps us create new products and improve existing ones in various fields.
A current of 15.0 A for 30 seconds results in a charge of 450 C . This charge translates to approximately 2.81 × 1 0 21 electrons flowing through the device. The calculation involves using the relationship between current, charge, and the charge of an electron.
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