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This quiz includes various questions related to different chemical reactions. The students will be required to identify the reactants and products from a given chemical reaction and also have to check if a given reaction is balanced or not.
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Gasoline provides the energy that powers many car engines. In an engine, gasoline and oxygen are mixed together and burned, creating carbon dioxide gas and water vapor. This process releases energy that the engine uses to turn the wheels, making the car move.
Complete the sentence.
In this chemical reaction, oxygen is a ##reactant##
This passage describes a chemical reaction. Read the passage. Then, answer the question below.
Strawberry aldehyde (C12H14O3) is a chemical that helps give strawberries their smell. Many people enjoy this smell, so strawberry aldehyde is often added to perfumes and soaps. Factories can make this fragrant chemical by combining acetophenone (C8H8O) with ethyl chloroacetate (C4H7ClO2). This combination forms strawberry aldehyde and hydrochloric acid (HCl). Making fragrant chemicals like strawberry aldehyde in a factory is often less expensive than extracting the same chemicals from plants.
In the chemical reaction described in the passage, which of the following are products? Select all that apply.
Strawberry aldehyde
Acetophenone
Ethyl chloroacetate
Hydrochloric acid
Consider the following reaction:
2 molecules of ethylene (C2H4) react with 1 molecule of oxygen (O2) to produce some amount of acetaldehyde (C2H4O).
During this reaction, how many molecules of acetaldehyde (C2H4O) are produced?
0
1
2
3
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Gasoline provides the energy that powers many car engines. In an engine, gasoline and oxygen are mixed together and burned, creating carbon dioxide gas and water vapor. This process releases energy that the engine uses to turn the wheels, making the car move.
Complete the sentence.
In this chemical reaction, carbon dioxide is a ##product##
NaOH + H2O ———-> NaCl + HCl
Is the given reaction balanced?
Yes
No
Fe + 2CuSO4—-> FeSO4 + 2Cu
Is the given reaction balanced?
Yes
No
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Gasoline provides the energy that powers many car engines. In an engine, gasoline and oxygen are mixed together and burned, creating carbon dioxide gas and water vapor. This process releases energy that the engine uses to turn the wheels, making the car move.
Complete the sentence.
In this chemical reaction, gasoline is a ##reactant##
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Like people on Earth, astronauts living on the International Space Station need oxygen to survive. Since there is no oxygen in space for the astronauts to breathe, they make oxygen using a process called electrolysis. This process uses electricity to break down water into hydrogen gas and oxygen gas. The hydrogen gas can be removed from the space station or recycled, and the oxygen gas is released into the air that the astronauts breathe.
Complete the sentence.
In the given reaction, hydrogen is a ##product##.
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Like people on Earth, astronauts living on the International Space Station need oxygen to survive. Since there is no oxygen in space for the astronauts to breathe, they make oxygen using a process called electrolysis. This process uses electricity to break down water into hydrogen gas and oxygen gas. The hydrogen gas can be removed from the space station or recycled, and the oxygen gas is released into the air that the astronauts breathe.
Complete the sentence.
In the given reaction, oxygen is a ##product##.
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Like people on Earth, astronauts living on the International Space Station need oxygen to survive. Since there is no oxygen in space for the astronauts to breathe, they make oxygen using a process called electrolysis. This process uses electricity to break down water into hydrogen gas and oxygen gas. The hydrogen gas can be removed from the space station or recycled, and the oxygen gas is released into the air that the astronauts breathe.
Complete the sentence.
In the given reaction, water is a ##reactant##.
