Physical properties: its density is 8.36 9/cm3, its meltiong point is 865
Celsius
Chemical properties:Brass is a metal, obviously. It can form ionic compounds with nonmetals and other anions under the right conditions. It's an alloy of zinc, a fairly reactive metal, and Copper, a fairly unreactive metal, and sometimes small amounts of other metals - the exact mixture can have a major effect on which metal's properties are seen, and to what extent.
The copper constituent is not very reactive, but will form copper oxide (flaky, green or black) given oxygen and enough time or heat - usually this is limited to a thin surface layer. Copper will not react with acids.
Zinc is more reactive and susceptible to corrosion than copper - if conditions are right it may lead to selective corrosion, where the zinc forms compounds and leaves behind spongy copper metal. It will react with acids.
Ammonia is a particular problem for copper alloys - it forms a water soluble ion with copper which may cause serious stress cracking.