Circle the atom and each pair that has a smaller ion energy and explain why?
Ca or Ba?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

One does not belong why? ice, gold ,wood ,diamond and table salt

Classify this reaction: 2al+n2-> aln.