Since density depends on the mass and volume of an object, we need both of these values combined in the correct way to solve for density. keep in mind that we may not be given the mass and volume directly, or the values may not be given in the units we want and we need to convert to the correct units before solving for density.
when converting between metric units, use the prefixes to you determine the magnitude of a value. the prefix k indicates kilo, 1000. therefore 1000 g = 1 kg.
a 11.0 kg iron weightlifting plate has a volume of 1400 cm3 . what is the density of the iron plate in g/cm3?
express your answer in grams per cubic centimeter to three significant figures.

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.