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chemistry

chemistry
30問 • 1年前
  • Kristina Cassandra Racoma
    • 通報

    問題一覧

  • 1

    simply a homogeneous mixture of two or more pure substances. It consists of a solute and a solvent.

    solution

  • 2

    are solutions where the solvent is a liquid. It is the most common type of solution

    liquid solutions

  • 3

    are solutions where the solvent is solid. It could be a solid-solid solution, a liquid-solid solution, or a gas-solid solution.

    solid solutions

  • 4

    are solutions where the solvent is a gas.

    gaseous solution

  • 5

    A solution in which the amount of solute is less than the solute’s solubility at a given volume and temperature is called an

    unsaturated solution

  • 6

    A solution in which the amount of solute is equal to the solute’s solubility at a given volume and temperature is called a

    saturated solution

  • 7

    A solution in which the amount of solute greater than the solute’s solubility at a given volume and temperature is called a

    supersaturated solution

  • 8

    The most common unit of concentration is

    molarity

  • 9

    Solutions are _ when it contains an excessively large amount of solute

    concentrated

  • 10

    A _ has a lower concentration than the concentrated, stock solution.

    dilute solution

  • 11

    The pure substance present in lesser amounts is the

    solute

  • 12

    The more abundant substance is the

    solvent

  • 13

    defined as a homogeneous state in which the substance has a uniform composition and governed by the same intermolecular forces throughout the material

    phase

  • 14

    are transitions that occur between different phases of matter.

    phase changes

  • 15

    Gas to liquid transition is called

    condensation

  • 16

    Liquid to gas transition is called

    evaporation or boiling

  • 17

    A change from the solid to liquid phase is called

    melting

  • 18

    A solid can change into a gas without passing through the liquid phase is called

    sublimation

  • 19

    gas transitions into solid without passing through the liquid phase is called

    deposition

  • 20

    When molecular order decreases, this results in the absorption of energy. It is an

    endothermic proces

  • 21

    When molecular order increases, this results in the release of energy. This is an

    exothermic process

  • 22

    The amount of heat needed to increase the temperature by 1 ºC is defined as

    specific heat

  • 23

    The temperature at which a substance turns from solid to liquid is called the

    melting point

  • 24

    The reverse process is freezing and the temperature where this occurs is the

    freezing point

  • 25

    The temperature at which liquid turns to gas is called the

    boiling point

  • 26

    The amount of heat needed to melt a substance is called the heat of fusion or the

    enthalpy of fusion

  • 27

    The amount of heat needed to complete the phase change of a substance is called the heat of vaporization or the

    enthalpy of vaporization

  • 28

    factors affecting solubility

    nature of solute and solvent, temperature, pressure (or volume), mechanical changes

  • 29

    it depends on the amount of solute and solvent present in solution

    solubility

  • 30

    the relationship between pressure if the gas over the solution and solubility of the gas

    Henry's law

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    問題一覧

  • 1

    simply a homogeneous mixture of two or more pure substances. It consists of a solute and a solvent.

    solution

  • 2

    are solutions where the solvent is a liquid. It is the most common type of solution

    liquid solutions

  • 3

    are solutions where the solvent is solid. It could be a solid-solid solution, a liquid-solid solution, or a gas-solid solution.

    solid solutions

  • 4

    are solutions where the solvent is a gas.

    gaseous solution

  • 5

    A solution in which the amount of solute is less than the solute’s solubility at a given volume and temperature is called an

    unsaturated solution

  • 6

    A solution in which the amount of solute is equal to the solute’s solubility at a given volume and temperature is called a

    saturated solution

  • 7

    A solution in which the amount of solute greater than the solute’s solubility at a given volume and temperature is called a

    supersaturated solution

  • 8

    The most common unit of concentration is

    molarity

  • 9

    Solutions are _ when it contains an excessively large amount of solute

    concentrated

  • 10

    A _ has a lower concentration than the concentrated, stock solution.

    dilute solution

  • 11

    The pure substance present in lesser amounts is the

    solute

  • 12

    The more abundant substance is the

    solvent

  • 13

    defined as a homogeneous state in which the substance has a uniform composition and governed by the same intermolecular forces throughout the material

    phase

  • 14

    are transitions that occur between different phases of matter.

    phase changes

  • 15

    Gas to liquid transition is called

    condensation

  • 16

    Liquid to gas transition is called

    evaporation or boiling

  • 17

    A change from the solid to liquid phase is called

    melting

  • 18

    A solid can change into a gas without passing through the liquid phase is called

    sublimation

  • 19

    gas transitions into solid without passing through the liquid phase is called

    deposition

  • 20

    When molecular order decreases, this results in the absorption of energy. It is an

    endothermic proces

  • 21

    When molecular order increases, this results in the release of energy. This is an

    exothermic process

  • 22

    The amount of heat needed to increase the temperature by 1 ºC is defined as

    specific heat

  • 23

    The temperature at which a substance turns from solid to liquid is called the

    melting point

  • 24

    The reverse process is freezing and the temperature where this occurs is the

    freezing point

  • 25

    The temperature at which liquid turns to gas is called the

    boiling point

  • 26

    The amount of heat needed to melt a substance is called the heat of fusion or the

    enthalpy of fusion

  • 27

    The amount of heat needed to complete the phase change of a substance is called the heat of vaporization or the

    enthalpy of vaporization

  • 28

    factors affecting solubility

    nature of solute and solvent, temperature, pressure (or volume), mechanical changes

  • 29

    it depends on the amount of solute and solvent present in solution

    solubility

  • 30

    the relationship between pressure if the gas over the solution and solubility of the gas

    Henry's law