Chemical Reactions and Energy Transfer Quiz

What factors affect the energy transfer in a chemical reaction?

• The number of reactants used.

• The color of the reactants.

• The shape of the container.

• The time of day the reaction is performed.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

NGSS.HS-PS3-4

What causes the temperature of food to increase in a chemical reaction?

• The transfer of energy from an exothermic reaction to the food

• The decrease in the number of particles

• Breaking the thermometer

• The food generates heat spontaneously.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is expected to happen to the particles in the surroundings when energy is transferred from an exothermic reaction?

• The particles will accelerate, increasing the temperature.

• The particles will decelerate, decreasing the temperature.

• The particles will remain in the same state.

• The particles will change to a gaseous state.

Tags

NGSS.HS-PS3-4

What should be included in a model to show the direction of energy transfer?

• Arrows indicating the direction

• Shapes representing molecules

• Different colors for atoms

• Symbols showing the temperature

Tags

NGSS.MS-PS1-4

What type of temperature change occurs when the reactants are doubled in an exothermic reaction?

• An increase in temperature

• A decrease in temperature

• No change in temperature

• A decrease followed by an increase in temperature

Tags

NGSS.HS-PS1-5

What happens to particles when the temperature increases?

• The particles move faster.

• The particles stop moving.

• The particles shrink.

• The particles combine.

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

How does an exothermic reaction affect the surrounding systems?

• Transfers energy to the surroundings, increasing the temperature

• Absorbs energy from the surroundings, decreasing the temperature

• Transfers matter to the surroundings, changing the mass

• Creates new reactants in the surroundings

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

When we double the amounts of reactants, what is the effect on the change in temperature?

• The temperature increases more than with single reactants.

• The temperature does not change.

• The temperature decreases.

• The temperature doubles.

Tags

NGSS.HS-PS3-4

What is the expected result when the same amount of energy is transferred to more food?

• Lower temperature change

• Higher temperature change

• No temperature change

• The temperature change fluctuates randomly

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How can the number of reactants affect the change in temperature?

• More reactants increase the change in temperature

• More reactants decrease the change in temperature

• The number of reactants has no effect on the change in temperature

• The change in temperature is always the same regardless of the reactants