When do phase transitions occur in molecules? only when energy is withdrawn when energy is supplied or withdrawn only when energy is supplied when energy is neither supplied nor withdrawn

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

Is this a single replacement reaction or there is no

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?