martina

what is the difference between water on the surfaace of crystals and hydrate water itself?

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which of the following is not spontaneous process at 25 degrees celsius and 1 atm pressure? ice melting iron rusting salt dissolving steam condensing water boiling

balance: CaCl2 + AgNO3 → AgCl + Ca(NO3)2

a compound contains 5.2% by mass Nitrogen. It also contains carbon, hydrogen and oxygen. Combustion of 0.085g of the compound produced 0.224g of carbon dioxide and 0.0372g of water. Calculate the empirical formula of the compound.

what weight of NaCl is needed to prepare 200mls of a 250ppm Na solution?

could be fluid through a pipe or wind through the air or gamma rays through space or electrons through a Cathode Ray Tube

now, do u understand?

well i am sorry i know i did a bad thing and i am sorry damon well this might help u the flow of matter and energy is more than one thing it doesn't have one exact definition and i am sorry ms sue

this is pretty simple...if you have the time to put this on here..use google to answer this

plz help us with homework

working not really clear. can you please explain further.