A small bubble rises from the bottom of a lake, where the temperature and pressure are 8°C and 6.4 atm, to the water*s surface, where the temperature is 25°C and the
pressure is 1.0 atm. Calculate the final volume (in mL) of the bubble if its initial
volume was 2.1 mL.

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

Ineed to find the answer of this question because i dont understand it

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.