Which of the following is not a physical property?
a. sodium exploding when mixed with water.
b. a mineral causing a white streak on another mineral.
c. a piece of styrofoam floating on water because it is less dense.
d. water boiling at 100°c.

You need to start an experiment and the instructions are to mix 2 g of sodium bicarbonate with 50 ml of distilled water and then mix the solution. describe what lab apparatus you would use and what safety precautions you must observe when completing this experiment.

What attitude of the aristocracy is illustrated by lady bracknell's lines in the play?

Evaluate the tone of this cover letter. is it appropriate?