A 300 gram boat displaces 400 mL of water. How much cargo can it carry and still float?

List four observations that indicate that a chemical reaction may be taking place

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

What does the symbol (–hfus) indicate in a phase change?