If 1 mole of hydrazine combusts into the presence of oxygen, how many molecules of water vapor are produced? A: 1.20×10^23 H2O molecules
B: 1.20×10^24 H2O molecules
C: 28g N2 molecules
D: 6.022×10^23 H2O molecules​

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry

If maltose undergoes hydrolysis what subunits does it results to?