An atom of an element with a particular number of neutrons.

Formed when two or more atoms (either the same or different) bond together.

A substance made of atoms of two or more elements bonded to each other.

Law of Conservation of Mass

The physical law that matter cannot be created or destroyed and that the mass of the constituent parts in a chemical reaction remains unchanged even as the atoms involved in the reaction are rearranged.

The force that holds the atoms in molecules together.

An imbalance of positive and negative charge within an atom.

A compound that yields positively charged hydrogen ions (H+) when dissolved in water.

A compound that yields negatively charged hydroxide ions (OH-) when dissolved in water.

A change in matter from one state (solid, liquid, or gas) to another without a change in its chemical composition.

The force exerted on or acting against something.

The process by which one or more substances are converted into different substances.

In science, the act of applying force to an object over some distance.

Energy embodied in something due to its being in motion.

Energy in something that has yet to be released.

A measurement of the hotness or coldness of something, formally a measure of how vigorously the atoms in a material are moving and colliding with each other.

A series of chemical reactions involving water and CO2, through which plants and some other organisms store the sun's energy in simple sugars.

First Law of Thermodynamics

The physical law that energy is conserved; it cannot be created or destroyed, it merely changes form.

Second Law of Thermodynamics

The physical law that with each transformation or transfer of energy some energy is degraded or wasted, and that the tendency of any isolated system is to disorder.

A measure of the degree of disorder in a system.

An organism's position in a food chain indicating its number of steps away from primary producers.

An organism that transforms sunlight into chemical energy held within the molecules of its structure.

An organism that consumes plants directly.

Ch3 Flashcards: Matter and Energy Flashcards

Student preview

30 questions

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1.

FLASHCARD QUESTION

Front

Matter

Back

Anything in the universe that takes up space.

2.

FLASHCARD QUESTION

Front

Mass

Back

A measure of the amount of matter in something.

3.

FLASHCARD QUESTION

Front

Element

Back

A substance that cannot be broken down into other substances.

4.

FLASHCARD QUESTION

Front

Atom

Back

The smallest unit of an element that retains all the characteristics of that element.

5.

FLASHCARD QUESTION

Front

Proton

Back

A particle within atoms that has a positive charge.

6.

FLASHCARD QUESTION

Front

Electron

Back

A particle within atoms that carries a negative charge.

7.

FLASHCARD QUESTION

Front

Neutron

Back

A particle within atoms that has no electric charge.

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