Element z reacts with bromine to form an ionic compound zbr2
a) state with reasons i) the physical properties of zbr2 at room temperature ii) whether z is a metal or non metal.
b)what is the formula of the oxide formed when z reacts with oxygen?

How many molecules are in 6.0 moles of methane

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons