6. How many grams of Na would be needed to make 150 g of NaCl?
2Na + Cl2 → 2NaCl

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.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element