Frank has an eraser It has a mass of 4g and a volume of 2ml What is its density hint Density equals mass and volume

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.