Flashcards on Basic Concepts of Chemistry

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What is chemistry?

Chemistry is the study of matter, its composition, properties, and the changes it undergoes.

What is matter?

Matter is anything that has mass and occupies space.

What are the three states of matter?

The three states of matter are solid, liquid, and gas.

What are elements?

Elements are pure substances made up of only one kind of atom.

What is an atom?

An atom is the smallest unit of an element that retains the chemical properties of that element.

What is a compound?

A compound is a substance made up of two or more different elements chemically combined in a fixed ratio.

What is a mixture?

A mixture is a combination of two or more substances that can be separated by physical means.

What is a physical change?

A physical change is a change in which the substance's physical properties are altered, but its composition remains the same.

What is a chemical change?

A chemical change is a change that results in the formation of new substances with different chemical properties.

What is the periodic table?

The periodic table is a tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties.

What are subatomic particles?

Subatomic particles are particles that are smaller than an atom, such as protons, neutrons, and electrons.

What is an ion?

An ion is an atom or molecule that has gained or lost electrons, resulting in a positive or negative charge.

What is a chemical formula?

A chemical formula is a representation of the elements and their ratios in a compound.

What is a chemical equation?

A chemical equation represents a chemical reaction by showing the reactants and products involved.

What is the law of conservation of mass?

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

What is chemistry?

Chemistry is the study of matter, its composition, properties, and the changes it undergoes.

What is matter?

Matter is anything that has mass and occupies space.

What are the three states of matter?

The three states of matter are solid, liquid, and gas.

What are elements?

Elements are pure substances made up of only one kind of atom.

What is an atom?

An atom is the smallest unit of an element that retains the chemical properties of that element.

What is a compound?

A compound is a substance made up of two or more different elements chemically combined in a fixed ratio.

What is a mixture?

A mixture is a combination of two or more substances that can be separated by physical means.

What is a physical change?

A physical change is a change in which the substance's physical properties are altered, but its composition remains the same.

What is a chemical change?

A chemical change is a change that results in the formation of new substances with different chemical properties.

What is the periodic table?

The periodic table is a tabular arrangement of elements based on their atomic number, electron configuration, and recurring chemical properties.

What are subatomic particles?

Subatomic particles are particles that are smaller than an atom, such as protons, neutrons, and electrons.

What is an ion?

An ion is an atom or molecule that has gained or lost electrons, resulting in a positive or negative charge.

What is a chemical formula?

A chemical formula is a representation of the elements and their ratios in a compound.

What is a chemical equation?

A chemical equation represents a chemical reaction by showing the reactants and products involved.

What is the law of conservation of mass?

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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