a sample of a substance has a mass of 52.5g and displaces a volume of 4.2ml. what is the density of the substance

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas