Why do the stars appear to move across the night sky?
2 answers:
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Answer:
a. Reactants: F₂ and HCl molecules
Products: Cl₂ and HF
b. 4HCl + 2F₂ ----> 4HF + 2Cl₂
c. Single replacement reaction
<em>Note: The question is not complete. The complete question is found below as well as in the attachment. </em>
<em>Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases:</em>
<em>a. write a formula for each of the reactants</em>
<em>b. write a balanced equation for the reaction</em>
<em>c. indicate the type of reaction as combination,decomposition, single replacement, double replacement, or combustion</em>
Explanation:
a. From the models shown in the diagram, The reactants are F₂, HCl while the products are Cl₂ and HF respectively
b. Equation for the reaction is given below;
4HCl + 2F₂ ----> 4HF + 2Cl₂
c. The reaction is single replacement reaction such that fluorine gas molecules replace the chlorine atoms in hydrogen chloride to form hydrogen fluoride with the liberation of chlorine atoms as gaseous molecules.
