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?

Newtons second law deals most cosely with

What is the correct lewis structure for chloroform chcl3

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils