What are the reactants in this chemical reaction?
Silicon dioxide plus hydrofluoric acid produces silicon tetrafluoride and water.
A. [tex]$SiO _2+ HF$[/tex]
B. [tex]$SiF _4+ SiO _2$[/tex]
C. [tex]$HF + H _2 O$[/tex]
D. [tex]$SiF _4+ H _2 O$[/tex]
Answer (2)
The problem states that silicon dioxide and hydrofluoric acid produce silicon tetrafluoride and water.
Reactants are the starting materials in a chemical reaction.
Therefore, the reactants are silicon dioxide ( S i O 2 ) and hydrofluoric acid ( H F ).
The reactants are: S i O 2 + H F
Explanation
Identifying the Problem We are given a chemical reaction where silicon dioxide and hydrofluoric acid react to produce silicon tetrafluoride and water. The question asks us to identify the reactants in this reaction. Reactants are the substances that start the chemical reaction.
Determining the Reactants In the given reaction, silicon dioxide ( S i O 2 ) and hydrofluoric acid ( H F ) are the starting materials. These are the substances that combine and transform into new substances.
Final Answer Therefore, the reactants are silicon dioxide ( S i O 2 ) and hydrofluoric acid ( H F ).
Examples
In a baking recipe, flour and sugar are combined to produce a cake. Flour and sugar are the reactants, while the cake is the product. Similarly, in the given chemical reaction, silicon dioxide and hydrofluoric acid are the reactants that produce silicon tetrafluoride and water.
The reactants in the chemical reaction are silicon dioxide ( S i O 2 ) and hydrofluoric acid ( H F ). Therefore, the correct choice is option A: S i O 2 + H F . These are the substances that combine to produce silicon tetrafluoride and water.
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