Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

Why are pipes bursting in the in extremely cold weather?

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.