Front

Oxygen (O2)

Back

Diatomic element

Front

Ozone (O₃)

Back

Polyatomic element

Front

Lead melts in a hot flame

Back

Physical property

Front

Sulfur + acid = gas

Back

Chemical property

Front

Water evaporates at 100 °C

Back

Physical property

Front

Shovel rusting in humid air

Back

Chemical property

Front

Second law of thermodynamics

Back

Highest entropy, minimum usable energy

Front

Types of mechanical energy

Back

Kinetic and potential

Front

Heat ≠ Temperature

Back

False

Front

Thermal energy flow direction

Back

Higher temperature to lower temperature: True