How many aluminum atoms are in 2.20 g of aluminum?

How many miles of water are produced if 5.43 mol pbo2 are consumed

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.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by