What mass of sodium contains the same number of atoms as 27 grams of Aluminum?

What three natural resources are found in the great lakes region

What are the first three quantum numbers for the electrons located in subshell 2s?

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?