Which of the following best matches a part of a living cell with the function it performs? 1. cytoplasm: fluid which carries the nucleus and other organelles 2. vacuole: fluid which carries the nucleus and other organelles 3. cytoplasm: directs all of the cell's activities 4. vacuole: directs all of the cell's activities

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

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.

Which of the following is not true about the atomic model of substances?