How many moles of solid magnesium are required to form 10.00 moles of Magnesium oxide? A. 5.00mol MgO
B. 1.00mol MgO
C. 2.00mol MgO
D. 10.00mol MgO

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

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 is the atomic number of an atom that has 6 protons