Tema
Q:
8.1 Define an acid in terms of the Lowry-Brensted theory.
8.2 Consider the following acid-base reaction:
8.2.1 Identify the conjugate acid-base pairs in the above reaction.
8.2 .2 Define the term ampholye.
8.23 Chooso an ampholyte in the above reaction.
Q:
a) \( \mathrm{Se}_{2} \mathrm{O}_{2}+\mathrm{H}_{2} \mathrm{O}= \)
Q:
Which change will cause a chemical reaction to speed up?
decreasing the concentration of reactants
removing a catalyst
decreasing the temperature
increasing the surface area of a solid reactant
Q:
8.1 Define an acid in terms of the Lowry-Brensted theory.
8.2 Consider the following acld-base reaction:
8.2.1 Identify the conjugate acid-base pairs in the above reaction.
8.2.2 Define the term ampholye.
8.2.3 Choose an ampholyte in the above reaction.
Q:
1. Balancee por el mpetodo de tanteo
\( \mathrm{HCl}+\mathrm{MnO}_{2} \rightarrow \mathrm{MnCl}_{2}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2} \)
\( \mathrm{Hg}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{HgSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2} \)
\( \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{C} \rightarrow \mathrm{Fe}+\mathrm{CO} \)
\( \mathrm{KMnO}_{4}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{~K}_{2} \mathrm{SO}_{4}+\mathrm{MnSO} \mathrm{O}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{O} \)
\( \mathrm{ZnS}+\mathrm{O}_{2} \rightarrow \mathrm{ZnO}_{2}+\mathrm{SO}_{2} \)
Q:
prediga la formula quimica pares siguientes Al y F
Q:
prediga la formula quimica pares siguientes Al y \( F \)
Q:
QUESTION 8:
\( 8.1 \quad \) Dofine bolling point.
\( 8.2 \quad \) Water boils at \( 100^{\circ} \mathrm{C} \) in a normal pot on tho stovo top, but the water in a
prossuro cooker boils at \( 123^{\circ} \mathrm{C} \). Explain why wator bolls at a higher
temperaturo in the pressure cooker.
Q:
When heated, potassium chlorate produces oxygen gas \& potassium chloride, according to
the reaction below. If 22.9 grams of potassium chlorate reacts and 4.39 L of oxygen at STP is
collected, what is the percent yield for the reaction?
\( 2 \mathrm{KClO}_{3} \rightarrow 2 \mathrm{KCl}+3 \mathrm{O}_{2} \)
Q:
If you have 100 ml of a solution and 90 ml of it is water mixed with 10 ml of polluta
what is the concentration?
\( 1: 10 \)
\( 21: 33 \)
\( 1: 1 \)
\( 20: 500 \)
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