Energy in Chemical Reactions Vocabulary

A set of vocabulary flashcards defining key terms, energy forms, and examples of energy release and absorption in chemical reactions based on the provided lecture notes.

Chemical Reactions

Processes involving changes in energy where reactions either release energy to or absorb energy from their surroundings.

Forms of Energy in Chemical Reactions

Different manifestations of energy that appear during chemical reactions, specifically heat, light, sound, and electricity.

Heat Energy

The most common form of energy involved in chemical reactions.

Importance of Energy in Chemical Reactions

Energy is important because it helps chemical reactions happen and causes changes in substances.

Energy-Releasing Reactions

Chemical reactions that give off energy to their surroundings, exemplified by a burning candle, fireworks exploding, and a glow stick glowing.

Energy-Absorbing Reactions

Chemical reactions or processes that take in energy from their surroundings, exemplified by charging a battery, cooking food, and an ice pack becoming cold.

Burning Candle

A chemical reaction example that releases energy in the form of heat and light.

Fireworks Exploding

A chemical reaction example that releases energy in the form of bright light, sound, and heat.

Glow Stick Glowing

A chemical reaction example that releases energy in the form of light.

Charging a Battery

A process example that absorbs energy in the form of electricity.

Cooking Food

A process example that absorbs energy in the form of heat.

Ice Pack Becoming Cold

A reaction or process example (also referred to as a cold pack) that absorbs heat from its surroundings, making it feel cold.