Identify reactants and products

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

• product

Tags

NGSS.MS-PS1-2

This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.

Plants make glucose, a sugar they can use for food, through a process called photosynthesis. During photosynthesis, plants use energy from sunlight to make glucose from water and carbon dioxide. In the process of making glucose, plants also create most of the oxygen in the air we breathe.

Complete the sentence.

In this chemical reaction water is a

• reactant
• product

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.

Many chemical factories use the Haber process to make ammonia. In this process, nitrogen gas and hydrogen gas combine at high temperatures and pressures. Ammonia from the Haber process can be used as fertilizer for plants. Fertilizers are made of compounds containing chemical elements such as nitrogen that help plants grow.

Complete the sentence.

In this chemical reaction, nitrogen is a ___________.

• reactant

• product

Tags

NGSS.MS-PS1-2

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, water is a_____________.

• reactant

• product

Tags

NGSS.MS-PS1-2

This passage describes a chemical reaction. Read the passage. Then, answer the question below.

Hydrogen sulfide (H2S) is a poisonous gas that is left over when factories purify natural gas.

Instead of disposing of hydrogen sulfide, factories can turn it into sulfuric acid (H2SO4), which is often used to manufacture plant fertilizer.

Factories make sulfuric acid using the wet sulfuric acid process, which combines hydrogen sulfide with oxygen (O2).

In the chemical reaction described in the passage.

Which of the following are

reactants?

Select all that apply.

• 
• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

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.

• 
• 
• 

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

NGSS.MS-PS1-5

This passage describes a chemical reaction. Read the passage. Then, answer the question below.

While orbiting Earth, a satellite controls its position using small rockets on its sides. These rockets are often fueled by hydrazine (N2H4), which can be made using the Olin Raschig process. In this process, sodium hypochlorite (NaClO) and ammonia (NH3) combine to form water (H2O), sodium chloride (NaCl), and hydrazine.

In the chemical reaction described in the passage, which of the following are

reactants?

Select all that apply.

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.

Many"s watches are powered by small, flat batteries called button cells. One common type of button cell contains the metal zinc. When zinc in the battery combines with oxygen in the air, zinc oxide forms. This process generates the electricity that powers the watch.

Complete the sentence.

In this chemical reaction, oxygen is a _____________.

• reactant

• product

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

This passage describes a chemical reaction. Read the passage. Then, answer the question below.

Over 200,000 miles of train tracks have been built in the United States since the early 1800s. Workers who build new train tracks often use a process called thermite welding to connect short pieces of metal track. This type of welding uses thermite powder, which is a mixture of aluminum metal (Al) and ferric oxide (Fe2O3). A worker places the powder between two pieces of track and burns it to form aluminum oxide (Al2O3) and iron metal (Fe).

This process releases an enormous amount of energy that melts the two pieces of track together. In the chemical reaction described in the passage, which of the following are reactants?

Select all that apply.

• aluminum (Al)

• aluminum oxide (Al₂O₃)

• iron (Fe)

• iron (Fe)

• ferric oxide (Fe₂O₃)

Tags

NGSS.MS-PS1-2

This passage describes a chemical reaction. Read the passage. Then, answer the question below.

Rainwater that contains more acid than normal is called acid rain. The additional acid in the rainwater can damage stone buildings and statues by speeding up erosion. For example, when acid rain falls on a marble statue, sulfuric acid (H2SO4) in the acid rain interacts with calcium carbonate (CaCO3) in the marble, forming calcium sulfate (CaSO4). Calcium sulfate washes away easily in rain, so details in the statue can wear away.

In the chemical reaction described in the passage, which of the following are reactants?

Select all that apply.

• H2SO4

• CaCO3

• CaSO4

Tags

NGSS.MS-PS1-2