An aqueous solution of hydrobromic acid is standardized by titration with a 0.185 M solution of sodium hydroxide. If 28.4 mL of base are required to neutralize 19.1 mL of the acid, what is the molarity of the hydrobromic acid solution

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.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.