Classify as physical property or chemical property: Length of metal objects A. Physical Property
B. Chemical Property

A.Physical property

Explanation:

Physical properties such as mass,volume,density and colour can be observed without changing the identity of that matter.Examples of extensive properties include mass,volume and length.

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

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a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.