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Physical or Chemical Change Quiz

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Questions and Answers

What type of change is the formation of Cl2 gas when muriatic acid is mixed with bleach powder?

Chemical change (correct)

Phase change

Physical change

Nuclear change

Which process involves a chemical change?

Mixing muriatic acid with bleach powder (correct)

Conversion of dry ice to smoke

Fermentation of milk to make yogurt

Recharging a lithium-ion battery

In Rutherford's model of the atom, where is nearly all of the atom's mass located?

Spread evenly throughout the atom

In the electron cloud

In the empty space within the atom

In the nucleus (correct)

What determines the actual volume of an atom according to Rutherford's model?

The size of the electron cloud Signup and view all the answers

How was the wave nature of light proven?

Bright spots would appear if light traveled as a particle Signup and view all the answers

Which one of these processes involves a physical change?

Recharging a lithium-ion battery Signup and view all the answers

What is the phenomenon known as when the prediction of the Rayleigh-Jeans Law fails in the ultraviolet range?

Ultraviolet catastrophe Signup and view all the answers

According to Max Planck, what is the smallest quantity of energy that can be emitted or absorbed as electromagnetic radiation?

Quantum Signup and view all the answers

What is the equation that represents a photon's energy, according to the Photoelectric Effect?

E = hv Signup and view all the answers

Quantum numbers are used to describe the properties of electrons in an atom. Which of the following sets of quantum numbers is valid?

0, 0, 0, ½ Signup and view all the answers

What did Max Planck propose in 1900 about the energy (or light) released or absorbed by atoms?

It can be released or absorbed in discrete 'chunks'. Signup and view all the answers

In the context of blackbody radiation, what happens when a blackbody is heated?

It emits all wavelengths of light. Signup and view all the answers