Answer:Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance. ... By international agreement, absolute zero is defined as precisely; 0 K on the Kelvin scale, which is a thermodynamic (absolute) temperature scale; and –273.15 degrees Celsius on the Celsius scale.
Explanation:
Answer:
physical change because even though gas formation was observed the water was undergoing a state change which means that it's original properties are preserved
Yes you add water to calcium oxide it makes calcium hydroxide
Pressure does not affect the voltage produced in a voltaic cell.
