Aluminium can be manufactured from the electrolysis of a molten mixture of aluminium oxide and cryolite. In this process, which electrode must be continually replaced

Evaluate this exponential expression,8. (2 + 3)2 – 42

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Based on its chemical properties, identify the position of each chemical family on the periodic table.