Unit 6 Exam
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Last updated over 3 years ago
13 questions
2
A reaction is most likely to occur when reactant particles collide with
A reaction is most likely to occur when reactant particles collide with
2
Under what conditions will the rate of a chemical reaction always decrease?
Under what conditions will the rate of a chemical reaction always decrease?
2
A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.
Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)
Which set of reaction conditions produces H2 at the fastest rate?
A student conducts an experiment where she reacts a lump of Zinc (Zn) with hydrocholoric acid (HCl). The balanced equation below represents the reaction.
Zn (s) + 2 HCl (aq) --> H2 (g) + ZnCl2 (aq)
Which set of reaction conditions produces H2 at the fastest rate?
2
Increasing the temperature increases the rate of a reaction by:
Increasing the temperature increases the rate of a reaction by:
2
For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.
For the reaction between aluminum metal and copper chloride (CuCl2) that we performed together, what is the reason that breaking a single 5 g piece of aluminum into 25 smaller pieces of aluminum (still with a total mass of 5 g) speeds up the reaction rate.
2
Which solution of CuCl2 will lead to the fastest reaction with aluminum?
Which solution of CuCl2 will lead to the fastest reaction with aluminum?
2
State the effect of the concentration of the reactant on the rate of the chemical reaction above.
State the effect of the concentration of the reactant on the rate of the chemical reaction above.
2
Explain your answer to 7 in terms of collision theory.
Explain your answer to 7 in terms of collision theory.
2
In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.
In a different experiment involving the same reaction, it was found that an increase in temperature increased the rate of the reaction. Explain this result in terms of collision theory.
1
How does pressure affect reation rate? Explain this in terms of collision theory
How does pressure affect reation rate? Explain this in terms of collision theory
2
Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.
A + B + heat --> C + D
Given the information below, which of the following changes will increase the rate of the forward reaction? Assume all reactants and products involved are in the gaseous form.
A + B + heat --> C + D
2
Which statement regarding this reaction at equilibrium is always true?
Which statement regarding this reaction at equilibrium is always true?
2
At constant temperature and pressure, an increase in the concentration of A(g) will cause
At constant temperature and pressure, an increase in the concentration of A(g) will cause