What do these two changes have in common? your breath becoming visible on a cold day
using a large magnet to remove pieces of iron from a junkyard
Select all that apply.
Both are changes of state.
Both are only physical changes.
Both are chemical changes.
Both are caused by cooling.
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Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?