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Identify each of the following changes of state as melting, freezing, sublimation, or deposition:c. Heat is removed from 125 g of liquid water at 0 °C.
1. Matter and Measurements
States of Matter
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Nitric acid, which is used in the production of fertilizers, plastics and dyes, has a melting point of – 42ºC and a boiling point of 83ºC. Determine its physical state at a temperature of 110ºC.
A
Solid
B
Liquid
C
Gas
D
Plasma
Verified step by step guidance1
Identify the melting point and boiling point of nitric acid: melting point is -42ºC and boiling point is 83ºC.
Understand that the physical state of a substance depends on its temperature relative to its melting and boiling points.
If the temperature is below the melting point, the substance is in a solid state.
If the temperature is between the melting point and boiling point, the substance is in a liquid state.
If the temperature is above the boiling point, the substance is in a gaseous state. Since 110ºC is above 83ºC, nitric acid is in the gaseous state at this temperature.
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