If hot spots are stationary in the core or lower mantle, how does the rising heat pass through the convection cells in the upper mantle? I haven't been able to find much on this, or anything to help me draw a solution or at least a theory of sorts

What is the mass of 0.46 mol of mgcl2

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?

What three things does a balanced equation show you?