The mass of a sample of sodium bicarbonate is 2.1 kilograms (kg). there are 1,000 grams (g) in 1 kg, and 1 mc020-1.jpg 109 nanograms (ng) in 1 g. what is the mass of this sample in ng?

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.