What is the separation technique? What is the reason this technique would work? Are there other separation techniques that would separate the mixture?

Which substances have the lowest melting points: ionic covalent, or metallic

How have the greenhouse gasses increased from the year 2000 to 2018

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.