Determine the mass in grams of 7.75 x 10^21 atoms of carbon. (The mass of one mole of carbon is 12.01g.)

The identities of substances are the same before and after which type of change

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.