In single replacement, one element that starts out by itself another element in a compound, kicking it out

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Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

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.

What is the most common reason for matter changing its state?