9. The refractive index of water will change with its temperature due to the change in
density of its molecules.
a. True
b. False

If steel is more dense that lake water, why can a boat float

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87