Perform the following operation and express the answer in
scientific notation.
9.80x10-3 + 1.60x10-4
[ ? ]x10

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

Why is retrograde motion an apparent motion

Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a(n): a. observation. b. measurement. c. theory. d. natural law. e. experiment.