Aluminium oxide decomposes to aluminium and oxygen gas at high temperatureif a sample of 6.04 g aluminium oxide decomposes completely at temperature 72\degree C72°C and pressure 813 torr, calculate the volume of gas oxygen released.(molar mass aluminium oxide= 102 gmol^{-1}mol −1
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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.