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Questions and Answers
Glass does not have a crystalline structure in its state as a type of ceramic.
Glass does not have a crystalline structure in its state as a type of ceramic.
True (A)
Insufficient cooling time from the molten state can lead to the formation of a glassy state in a material.
Insufficient cooling time from the molten state can lead to the formation of a glassy state in a material.
True (A)
Most ceramics, unlike glass, crystallize when they solidify from a molten state.
Most ceramics, unlike glass, crystallize when they solidify from a molten state.
True (A)
Silica (SiO2) is a common component in glass products, typically making up a large percentage of the total composition.
Silica (SiO2) is a common component in glass products, typically making up a large percentage of the total composition.
Silica naturally transforms into a glassy state upon cooling from a liquid, unlike most ceramics.
Silica naturally transforms into a glassy state upon cooling from a liquid, unlike most ceramics.
Glass compositions do not include sodium oxide (Na2O) as one of the ingredients.
Glass compositions do not include sodium oxide (Na2O) as one of the ingredients.
The addition of lead oxide (PbO) to glass can help alter its color.
The addition of lead oxide (PbO) to glass can help alter its color.
Glass applications typically do not involve altering the index of refraction for optical purposes.
Glass applications typically do not involve altering the index of refraction for optical purposes.
Boron oxide (B2O3) in glass compositions can improve the chemical resistance against acidic substances.
Boron oxide (B2O3) in glass compositions can improve the chemical resistance against acidic substances.
Glass-ceramics are a type of material that resembles traditional crystalline ceramics in their structure.
Glass-ceramics are a type of material that resembles traditional crystalline ceramics in their structure.
