The crucible is not fired, as the procedure suggests, but had retained some impurities from previous use (or it could be oily smudges from fingers). the mass of the "dirty" crucible is recorded. however the impurities are burned off the experiment. will the mass of final product be too high, too low, or unchanged as a rsult of this technique error? explain

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-

How many moles are in 123.0 grams of kclo4?