Which of the following demonstrates that reactants and products are chemically different?
A.Zn + 2HC1 = 2HCl + Zn
B. Zn 2HCl = H2 + 2 nCl2
C. H20 + C4H10 = H20 + C4H10
D. C4H10+ H20= C4H10 +H20
is it b
pls help me
Yes Oscar it is B.
but you mean
Zn + 2HCl = H2 + ZnCl2
pls help me
yea thank you so much!!!!
To determine which reaction demonstrates that reactants and products are chemically different, we need to analyze each reaction and compare the chemical formulas of the reactants and products.
Let's examine each reaction:
A. Zn + 2HCl = 2HCl + Zn
In this reaction, the reactants are Zn and 2HCl, and the products are 2HCl and Zn. We can observe that the chemical formulas of the reactants and products remain the same. This reaction does not demonstrate that reactants and products are chemically different.
B. Zn + 2HCl = H2 + 2Cl2
In this reaction, the reactants are Zn and 2HCl, and the products are H2 and 2Cl2. We can see that the chemical formulas of the reactants and products are different. Zinc (Zn) and hydrochloric acid (HCl) combine to produce hydrogen gas (H2) and chlorine gas (Cl2). This reaction demonstrates that reactants and products are chemically different.
C. H2O + C4H10 = H2O + C4H10
In this reaction, the reactants are H2O and C4H10, and the products are H2O and C4H10. Again, the chemical formulas of the reactants and products remain the same. This reaction does not demonstrate that reactants and products are chemically different.
D. C4H10 + H2O = C4H10 + H2O
In this reaction, the reactants are C4H10 and H2O, and the products are C4H10 and H2O. The chemical formulas of the reactants and products are also the same. This reaction does not demonstrate that reactants and products are chemically different.
Based on the analysis, the reaction that demonstrates that reactants and products are chemically different is:
B. Zn + 2HCl = H2 + 2Cl2
Therefore, your answer is correct.