IXL F5-F7

When zinc in the battery combines with oxygen in the air, zinc oxide forms. This process generates the electricity that powers the watch

• Zinc is a product

• Zinc is a reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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.

• Water is a product

• Water is a reactant

Tags

NGSS.MS-LS1-6

In this process, sodium hypochlorite (NaClO) and ammonia (NH3) combine to form water (H2O), sodium chloride (NaCl), and hydrazine. Which are products?

• Sodium chloride

• Hydrazine

• water

• ammonia

Tags

NGSS.MS-PS1-2

The bacteria form lactic acid (C3H6O3) by combining water (H2O) and lactose (C12H22O11) in the milk. Which are the reactants?

• Lactose

• Lactic acid

• Water

Tags

NGSS.MS-PS1-2

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.

• Glucose is a product

• Glucose is a reactant

Tags

NGSS.MS-LS1-6

In less than one tenth of a second, enough nitrogen gas is produced to completely fill the airbag. As a result of the reaction, thermal energy is transferred into the surroundings.

• Warmer

• Colder

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When a tablet is dissolved in water, these substances react to form sodium citrate (Na3C6H5O7), water (H22O), and carbon dioxide (CO2) in the solution. During the reaction, thermal energy is absorbed from the surroundings. When a person swallows this antacid solution, the sodium citrate can help relieve stomach pain.

• Warmer

• Colder

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

In a car engine, isooctane reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). During the reaction, a large amount of thermal energy is released into the surroundings. This thermal energy is used to power the car.

• Warmer

• Colder

Tags

NGSS.HS-PS3-4

When sodium hydroxide dissolves in water, sodium ions (Na+) and hydroxide ions (OH−) form in the solution. During this process, chemical energy is converted to thermal energy, which flows into the surroundings.

• Warmer

• Colder

Tags

NGSS.HS-PS3-4

In the hot air near a lightning strike, nitrogen (N2) and oxygen (O2) react to produce nitric oxide (NO) and nitrogen dioxide (NO2). As the reaction occurs, thermal energy is absorbed from the surroundings and converted to chemical energy.

• Warmer

• Colder

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3