HELP.How old is a piece of cotton cloth if the half-life and the carbon-14 composition of the 22 percent that living plants? please answer the question completely? links will be deleted.

What is the mass of each element in a 324.8 sample of co2

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added