Calibration of a measuring instrument is the process of breaking in the instrument when it is new. the process of putting oil in all the moving parts of the instrument. comparing and adjusting the instrument’s measurement to get the data that you expect during your experiment. comparing and adjusting the instrument’s measurement to match a known quantity or another correctly functioning instrument’s measurement.

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table