A student finds that an unknown element readily reacts with alkali metals. What is the best conclusion about the unknown element? Just checking my answer

Answer options:

It is in group 17

It is an alkaline earth metal

It is a noble gas

It is in group 16

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?

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins