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Fast Reactions in Chemistry

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Questions and Answers

What is the primary factor that affects the speed of a reaction, aside from concentration of reactants?

Temperature of the reactants (correct)

Pressure of the reactants

Catalysts present in the reaction

Surface area of reactants

What is the timescale of fast reactions in chemistry?

Nanosecond timescale (10^-9 seconds)

Microsecond timescale (10^-6 seconds)

Millisecond timescale (10^-3 seconds)

Picosecond timescale (10^-12 seconds) (correct)

What is the product of the reaction between baking soda and vinegar?

Carbon dioxide and oxygen

Sodium acetate and water

Carbonic acid and water (correct)

Sodium bicarbonate and acetic acid

What is the energy required to initiate a combustion reaction, such as lighting a match?

Activation energy Signup and view all the answers

What is the characteristic of the reaction between cellulose and oxygen in a combustion reaction?

Exothermic, releasing heat Signup and view all the answers

In a chemical reaction, what is the characteristic of a single step where reactants directly convert to products?

Elementary Reaction Signup and view all the answers

What is the primary characteristic that distinguishes an Elementary Reaction from a Chain Reaction?

Number of steps Signup and view all the answers

What type of reaction involves a domino effect with various possibilities for branching?

Chain Reaction Signup and view all the answers

What is the key difference between an Elementary Reaction and a Chain Reaction in terms of reactant conversion?

Direct conversion Signup and view all the answers

What is a characteristic shared by both Elementary Reactions and Chain Reactions?

Chemical change Signup and view all the answers