Chemical and Nuclear Energy

1

Without the strong nuclear force, the nuclei of atoms would

collapse into themselves.

fly apart.

gain electrons.

double in size.

1

To what element does polonium-208 (atomic number 84) decay when it emits an alpha particle?

²¹⁰Pb

²¹⁰Po

²⁰⁴Pb

²¹⁴Rn

1

Reaction _____ in the figure shown is an example of a fission reaction.

null

1

What particle is needed to complete this nuclear reaction?

null

1

The image above represents a reaction that (select all that apply)

results in products with less potential energy

results in products with increaed potential energy

would feel cool to the touch

would feel warm to the touch

1

Units of energy include which of the following? (Select all that apply)

calories

Newtons

Kelvin

joules

1

Chemicals have chemical potential energy because (select all that apply)

atoms can be attracted or repelled from other atoms

atoms are in motion

chemical bonds can break and the atoms can reach lower energy configurations

atomic nuceli are unstable

1

In order to determine the energy content of food, chemists (select all that apply)

have the food undergo nuclear decay

burn the food

measure the temperature change in a calorimeter

measure the wavelength of light in the emission spectra of the food

1

Endothermic reactions result in: (Select all that apply)

energy given off to the surroundings

energy absorbed from the surroundings

the substance feeling cold

the substance feeling hot

1

Convection currents in the Earth’s crust (select all that apply)

are caused by heat released from nuclear decay

drive the motion of plates

are caused by heat absorbed from the sun

are caused by volcanoes

3

Cyclobutadiene combusts with oxygen according to the following reaction:
C₄H₄ + 5O₂ --> 4CO₂ + 2H₂O
Determine the magnitude of the estimated enthalpy change of this reaction, in kilojoules per mole of reaction. Record just the numerical value. Show your work!

3

An experiment is done to determine the calories released per gram of peanut when combusted. Measurements are taken and recorded in the table below.
According to this data, how many Calories (kilocalories) does each gram of peanut contain? Record just the numerical value, and not the units. Show your work!

Chemical and Nuclear Energy

Without the strong nuclear force, the nuclei of atoms would

To what element does polonium-208 (atomic number 84) decay when it emits an alpha particle?

Reaction _____ in the figure shown is an example of a fission reaction.

What particle is needed to complete this nuclear reaction?

The image above represents a reaction that (select all that apply)

Units of energy include which of the following? (Select all that apply)

Chemicals have chemical potential energy because (select all that apply)

In order to determine the energy content of food, chemists (select all that apply)

Endothermic reactions result in: (Select all that apply)

Convection currents in the Earth’s crust (select all that apply)

Cyclobutadiene combusts with oxygen according to the following reaction:C4H4 + 5O2 --> 4CO2 + 2H2ODetermine the magnitude of the estimated enthalpy change of this reaction, in kilojoules per mole of reaction. Record just the numerical value. Show your work!

Without the strong nuclear force, the nuclei of atoms would

To what element does polonium-208 (atomic number 84) decay when it emits an alpha particle?

Reaction _____ in the figure shown is an example of a fission reaction.

What particle is needed to complete this nuclear reaction?

The image above represents a reaction that (select all that apply)

Units of energy include which of the following? (Select all that apply)

Chemicals have chemical potential energy because (select all that apply)

In order to determine the energy content of food, chemists (select all that apply)

Endothermic reactions result in: (Select all that apply)

Convection currents in the Earth’s crust (select all that apply)

Cyclobutadiene combusts with oxygen according to the following reaction:C4H4 + 5O2 --> 4CO2 + 2H2ODetermine the magnitude of the estimated enthalpy change of this reaction, in kilojoules per mole of reaction. Record just the numerical value. Show your work!

Cyclobutadiene combusts with oxygen according to the following reaction:
C₄H₄ + 5O₂ --> 4CO₂ + 2H₂O
Determine the magnitude of the estimated enthalpy change of this reaction, in kilojoules per mole of reaction. Record just the numerical value. Show your work!

Cyclobutadiene combusts with oxygen according to the following reaction:
C₄H₄ + 5O₂ --> 4CO₂ + 2H₂O
Determine the magnitude of the estimated enthalpy change of this reaction, in kilojoules per mole of reaction. Record just the numerical value. Show your work!