A Short Trivia Quiz On Chemical Reactions! Trivia Quiz
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Questions and Answers
- 1.
In a chemical reaction...
- A.
Bonds between atoms are broken and then new ones are formed
- B.
A chemical change has occurred.
- C.
A new substance is produced by changing the arrangement of atoms
- D.
All of above
Correct Answer
D. All of aboveExplanation
In a chemical reaction, all of the above statements are true. Bonds between atoms are broken and new ones are formed, which indicates a chemical change has occurred. Additionally, the arrangement of atoms is changed, resulting in the production of a new substance. Therefore, all of the given options are correct explanations for a chemical reaction.Rate this question:
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- 2.
Stuff present at the beginning is the product and the stuff formed is the reactant.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is false because in a chemical reaction, the reactants are the substances present at the beginning and the products are the substances formed as a result of the reaction.Rate this question:
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- 3.
What are 4 ways to detect a chemical reaction?
- A.
Color change , density, temperature change, formation of a precipitate
- B.
Color change, formation of a precipitate, temperature change, formation of a gas
- C.
Formation of a gas, formation of precipitate, malleability, density
- D.
Color change, formation of a gas, formation of a rainbow, temperature
Correct Answer
B. Color change, formation of a precipitate, temperature change, formation of a gasExplanation
The answer is correct because color change, formation of a precipitate, temperature change, and formation of a gas are all common indicators of a chemical reaction. Color change occurs when the substances involved in the reaction produce new colored products. Formation of a precipitate happens when two solutions combine to form a solid. Temperature change can occur due to the release or absorption of energy during a reaction. Formation of a gas is often observed when a reaction produces a gas as a product. These four observations are widely used to detect and identify chemical reactions.Rate this question:
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- 4.
An exothermic reaction is a chemical reaction where more energy is absorbed rather than released.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
An exothermic reaction is a chemical reaction where more energy is released rather than absorbed.Rate this question:
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- 5.
What are 3 factors that affect the reaction rate?
- A.
Concentration, temperature, surface tension
- B.
Concentration, surface area, color change
- C.
Precipitate, concentration, surface area
- D.
Concentration, surface area, temperature
Correct Answer
D. Concentration, surface area, temperatureExplanation
The reaction rate is influenced by the concentration of reactants, as a higher concentration increases the likelihood of collisions between particles. Surface area also affects the reaction rate, as a larger surface area provides more opportunities for reactant particles to come into contact with each other. Temperature plays a role in the reaction rate as well, as an increase in temperature leads to higher kinetic energy and faster-moving particles, resulting in more frequent and energetic collisions.Rate this question:
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