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This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Hydrogen peroxide, a household disinfectant, breaks down into water and oxygen gas over time. Light speeds up this process, so hydrogen peroxide is typically stored in a dark-colored bottle. The bottle's dark coloring blocks light and makes the hydrogen peroxide last longer.
Complete the sentence.
In this chemical reaction, water is a....
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
To help relieve pain during a dental visit, a dentist may give a patient nitrous oxide. Nitrous oxide is made in factories by carefully heating ammonium nitrate. At 170°C, ammonium nitrate breaks down and forms a mixture of nitrous oxide gas and water vapor. After the mixture is collected, the water vapor is separated from the nitrous oxide gas.
Complete the sentence.
In this chemical reaction, water is a....
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Honeybees make honey from nectar that they collect from flowers. Nectar is a clear liquid that contains a sugar called sucrose. After a bee collects nectar from a flower, chemicals in the bee's body break down the sucrose into a mixture of fructose and glucose, two simpler sugars. The bee then deposits this mixture into a honeycomb and seals the honeycomb with wax.
Complete the sentence.
In this chemical reaction, sucrose is a....
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Ozone is a gas found high up in Earth's atmosphere. In places with severe air pollution, ozone can also be found in the air closer to the ground. This ground-level ozone forms when oxygen in the air combines with carbon monoxide and other chemicals in polluted air. Ground-level ozone can harm humans by damaging their lungs.
Complete the sentence.
In this chemical reaction, monoxide is a....
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
Have you ever eaten food that was cooked on a grill? Some grills are powered by propane gas. The propane combines with oxygen in the air to make carbon dioxide gas and water vapor. This process releases energy in the form of heat, creating a flame that cooks the food.
Complete the sentence.
In this chemical reaction, propane is a....
This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
The Space Shuttle program sent astronauts on 135 missions using a fleet of five shuttles between 1981 and 2011. The engines of each shuttle, like other modern rocket engines, used liquid hydrogen as fuel. When liquid hydrogen combines with liquid oxygen, an enormous amount of energy is released, along with water vapor. The shuttles used this energy to launch into space.
Complete the sentence.
In this chemical reaction, hydrogen is a....
This passage describes a chemical reaction. Read the passage. Then, answer the question below.
All organisms need energy to live. Many organisms, such as humans and other mammals, obtain energy from food using a process called aerobic respiration. During aerobic respiration, a sugar called glucose (C6H12O6) combines with oxygen (O2), forming carbon dioxide (CO2) and water (H2O). Organisms use the energy released from this process to carry out the functions necessary for life.
In the chemical reaction described in the passage, which of the following are products? Select all that apply.
This passage describes a chemical reaction. Read the passage. Then, answer the question below.
Some types of bacteria and yeast do not need oxygen to survive. These organisms make energy from food using a process called anaerobic respiration. In this process, organisms break down glucose (C6H12O6) into carbon dioxide (CO2) and ethanol (C2H6O). People can use organisms that carry out anaerobic respiration to make certain types of food and drink and to turn plants into fuel.
In the chemical reaction described in the passage, which of the following are reactants? Select all that apply.