022g of a divalent metal is deposited when a current of 0.45 A is passed through a solution of its salt for 25 minutes. Calculate the relative atomic mass of the metal

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

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?

What are the similarities of physical and chemical change ?