Which of the following statements describes a chemical property of oxygen? Select TWO correct answers.

• a gas at room temperature

• one molecule has an atomic mass of 32 amu

• supports combustion

• reacts with iron to form rust

• has a density of 1.42 g/L

What do quantum phenomena refer to?

• The behavior of matter and energy at very large scales

• The behavior of matter and energy at very small scales

• The behavior of matter and energy in classical physics

• The behavior of matter and energy in chemical reactions

What is quantum?

• The maximum amount of energy lost by an electron

• The minimum amount of energy gained by a proton

• The minimum amount of energy lost or gained by an electron

• The maximum amount of energy gained by a neutron

What is a photon?

• A particle of light with mass

• A quantized particle of light with energy but no mass

• A particle of light with no energy

• A quantized particle of light with mass and energy

What happens when light shines on a metal surface?

• It reflects off the surface.

• It heats the metal.

• It ejects electrons.

• It changes color.

According to Einstein, how does light behave?

• As a continuous wave.

• As packets of energy called photons.

• As a solid beam.

• As a magnetic field.

What is the formula for the energy of a photon?

• E = mc^2

• E = hv

• E = mv^2

• E = c/v

What is Planck's constant?

• 3.00×10^8 m/s

• 9.81 m/s^2

• 6.626×10^−34 Js

• 1.60×10^−19 C

What dual properties do light and matter exhibit according to the concept of wave-particle duality?

• Only wave-like properties

• Only particle-like properties

• Both wave-like and particle-like properties

• Neither wave-like nor particle-like properties

Which of the following is an example of wave-like behavior?

• Photoelectric effect

• Compton effect

• Interference

• Reflection