Podcast
Questions and Answers
Chemistry is the study of matter and its properties and how matter changes.
Chemistry is the study of matter and its properties and how matter changes.
True (A)
A liquid has a definite shape and volume.
A liquid has a definite shape and volume.
False (B)
Elements can be broken down into simpler substances by chemical means.
Elements can be broken down into simpler substances by chemical means.
False (B)
Compounds are formed from one element chemically bonded.
Compounds are formed from one element chemically bonded.
Homogeneous mixtures have a uniform composition throughout.
Homogeneous mixtures have a uniform composition throughout.
Protons are neutral particles located in the nucleus.
Protons are neutral particles located in the nucleus.
Ions are formed through the sharing of electrons.
Ions are formed through the sharing of electrons.
Reactants are the substances formed as a result of a chemical reaction.
Reactants are the substances formed as a result of a chemical reaction.
Avogadro's number is approximately 6.022 x 10^23.
Avogadro's number is approximately 6.022 x 10^23.
Acids accept protons (H+) in water.
Acids accept protons (H+) in water.
Flashcards
What is matter?
What is matter?
Anything with mass that occupies space.
What is an element?
What is an element?
Pure substance with only one type of atom; cannot be broken down chemically.
What is a compound?
What is a compound?
Substance with two or more elements chemically bonded in a fixed ratio.
What is a mixture?
What is a mixture?
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What are atoms?
What are atoms?
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What are Ions?
What are Ions?
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What are reactants?
What are reactants?
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What is a Mole?
What is a Mole?
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What is the limiting reactant?
What is the limiting reactant?
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What is a solution?
What is a solution?
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Study Notes
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Description
This lesson introduces fundamental concepts in chemistry, including the definition and states of matter (solid, liquid, gas). It covers elements, compounds, and mixtures, explaining their composition and how they can be broken down or separated.
