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Questions and Answers
What is the process called when a solid transforms directly into a gas?
What is the process called when a solid transforms directly into a gas?
Which of the following is an example of deposition?
Which of the following is an example of deposition?
What are the three states of matter?
What are the three states of matter?
Solid, liquid, gas
What is a pure substance?
What is a pure substance?
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Heterogeneous mixtures have only one phase.
Heterogeneous mixtures have only one phase.
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What describes intrinsic properties of matter?
What describes intrinsic properties of matter?
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Who is associated with the Law of Conservation of Mass?
Who is associated with the Law of Conservation of Mass?
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The 4th state of matter is called _____
The 4th state of matter is called _____
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What is the process of changing a solid directly to a gas called?
What is the process of changing a solid directly to a gas called?
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Deposition is the process of changing gas directly to solid.
Deposition is the process of changing gas directly to solid.
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What is the simplest form of substance known as?
What is the simplest form of substance known as?
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Which type of mixture consists of two or more substances wherein individual substance identities are retained?
Which type of mixture consists of two or more substances wherein individual substance identities are retained?
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A _________ is made up of two or more chemicals united in a fixed ratio.
A _________ is made up of two or more chemicals united in a fixed ratio.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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What is the law that states mass or matter is always constant?
What is the law that states mass or matter is always constant?
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Study Notes
Sublimation and Deposition
- Sublimation refers to the phase transition of matter from solid to gas (e.g., naphthalene balls).
- Deposition is the transition from gas to solid (e.g., dry ice).
Phases of Matter
- Matter is classified into solid, liquid, and gas based on properties.
- Solid: definite shape and volume, non-compressible.
- Liquid: indefinite shape, assumes the shape of the container, has a definite volume, non-compressible.
- Gas: indefinite shape and volume, highly compressible.
Matter Classification
-
Pure Substance:
- Divided into elements (simplest form) and compounds (two or more chemicals united, separable by chemical means).
-
Mixture:
- Comprises two or more substances where individual identities are retained, separable by physical means (e.g., distillation of alcohol and water).
- Classified into:
- Homogeneous (one phase; solution)
- Heterogeneous (two phases; suspension or colloid, e.g., milk)
Plasma
- Plasma is the fourth state of matter and the most abundant state in the universe.
- Contains free-moving ions and electrons, making it susceptible to magnetic fields.
- Examples include ionized neon light, auroras, stars, and the sun.
Properties of Matter
-
Extrinsic Properties:
- Dependent on the amount of matter present; examples include length, mass/weight, volume, pressure, entropy, enthalpy, and electrical resistance.
-
Intrinsic Properties:
- Independent of the amount of matter; examples include density (e.g., water = 1 g/mL), viscosity, velocity, temperature, and color.
Phase Changes
- Phase changes include transitions between solid, liquid, gas, and plasma states.
- The order of intermolecular forces affects the stability of these phases:
- Ionization strength: Solid > Liquid > Gas > Plasma
- Enthalpy (heat/reaction energy): Plasma > Gas > Liquid > Solid
Fundamental Chemistry Laws
-
Law of Conservation of Mass (Matter):
- Proposed by Antoine Lavoisier, stating that mass/matter remains constant; it cannot be created or destroyed in a chemical reaction.
Sublimation and Deposition
- Sublimation refers to the phase transition of matter from solid to gas (e.g., naphthalene balls).
- Deposition is the transition from gas to solid (e.g., dry ice).
Phases of Matter
- Matter is classified into solid, liquid, and gas based on properties.
- Solid: definite shape and volume, non-compressible.
- Liquid: indefinite shape, assumes the shape of the container, has a definite volume, non-compressible.
- Gas: indefinite shape and volume, highly compressible.
Matter Classification
-
Pure Substance:
- Divided into elements (simplest form) and compounds (two or more chemicals united, separable by chemical means).
-
Mixture:
- Comprises two or more substances where individual identities are retained, separable by physical means (e.g., distillation of alcohol and water).
- Classified into:
- Homogeneous (one phase; solution)
- Heterogeneous (two phases; suspension or colloid, e.g., milk)
Plasma
- Plasma is the fourth state of matter and the most abundant state in the universe.
- Contains free-moving ions and electrons, making it susceptible to magnetic fields.
- Examples include ionized neon light, auroras, stars, and the sun.
Properties of Matter
-
Extrinsic Properties:
- Dependent on the amount of matter present; examples include length, mass/weight, volume, pressure, entropy, enthalpy, and electrical resistance.
-
Intrinsic Properties:
- Independent of the amount of matter; examples include density (e.g., water = 1 g/mL), viscosity, velocity, temperature, and color.
Phase Changes
- Phase changes include transitions between solid, liquid, gas, and plasma states.
- The order of intermolecular forces affects the stability of these phases:
- Ionization strength: Solid > Liquid > Gas > Plasma
- Enthalpy (heat/reaction energy): Plasma > Gas > Liquid > Solid
Fundamental Chemistry Laws
-
Law of Conservation of Mass (Matter):
- Proposed by Antoine Lavoisier, stating that mass/matter remains constant; it cannot be created or destroyed in a chemical reaction.
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Description
Test your knowledge on sublimation and its applications in pharmaceutical chemistry. This quiz covers fundamental concepts related to matter and general chemistry, providing a comprehensive review for students. Ideal for those studying the PHLE curriculum.
