Plot a graph of volume versus temperature (in kelvins) with the two data points that resulted from your experiment. Draw straight line connecting the two points, thus assuming a linear relationship between volume and temperature. The x-intercept corresponds to where the volume would be zero and the temperature can be no lower, defined as absolute zero. absolute zero is 0 K. compare your results to those expected. How close to absolute zero was your intercept? Why might your value be different from absolute zero?

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

Matches the chemical name of each oxide of phosphorus to its chemical formula

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?