Nuclear Reactions Practice Test

A 36-gram sample of water has an initial temperature of 22°C. After the sample absorbs 1,200 joules of heat energy, what is the final temperature of the sample?

• 14°C

• 8.0°C

• 55°C

• 30°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A sample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. The pressure of the sample is 0.90 atmosphere and the temperature is 298 K. What is the volume of the sample at STP?

• 41 mL

• 51 mL

• 55 mL

• 49 mL

Which term represents a type of nuclear reaction?

• single replacement

• vaporization

• natural transmutation

• condensation

Tags

NGSS.HS-PS1-8

Which equation represents a spontaneous transmutation?

• 2KClO₃(s) → 2KCl(s) + 3O₂(g)

• Ca(s) + 2H₂O(l) → Ca(OH)₂(aq) + H₂(g)

• ²³⁹₉₄Pu + ²¹⁰₀n → ²⁴¹₉₅Am + ⁰₋₁e

• ³⁷₂₀Ca → ³⁷₁₉K + ⁰₊₁e

Tags

NGSS.HS-PS1-8

Which statement describes the stability of the nuclei of potassium atoms?

• All potassium atoms have unstable nuclei that do not spontaneously decay.

• Some potassium atoms have unstable nuclei that spontaneously decay.

• Some potassium atoms have unstable nuclei that do not spontaneously decay.

• All potassium atoms have stable nuclei that spontaneously decay.

Tags

NGSS.HS-PS1-8

Which particle has the least mass?

• proton

• beta particle

• alpha particle

• neutron

When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases

• an alpha particle

• a neutron

• a beta particle

• a positron

Tags

NGSS.HS-PS1-8

Given the balanced equation representing a reaction: Which type of reaction is represented by this equation?

• saponification

• transmutation

• combustion

• decomposition

Tags

NGSS.HS-PS1-8

Which nuclear emission has the greatest penetrating power?

• proton

• beta particle

• gamma radiation

• positron

During a nuclear reaction, mass is converted into

• charge

• volume

• energy

• isomers

Tags

NGSS.HS-PS1-8