Which two large landmasses formed when Pangaea first started to separate?

Which statement is true about ionic compounds?

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?