Question 10 (1 point) Fluorine ions:
a. how many electrons does fluorine typically gain or lose
b. What is the charge of a fluorine ion?
C. Is it a cation and anion?

Which of the following mining methods disrupts the sea floor?

Compare and contrast physical changes with chemical changes.

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures