The density of ethanol is 0.788 g/mL. What is the mass of 157 mL of alcohol?

Why are the trends and exceptions to the trends in ionization energy observed?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?