Answer: it’s B for edge !
Explanation: took the test
Answer: The statement is true
Explanation:
The half-life of a radioactive isotope is the time taken for half of the total number of atoms in a given sample of the isotope to decay.
For instance
The half-life of radium is 1622 years. This means that if we have 1000 radium atoms at the beginning, then at the end of 1622 years, 500 atoms would have disintegrated, leaving 500 undecayed radium atoms
Thus, the statement is true
In order to determine the formula of the hydrate, [Anhydrous Solid⋅xH2O], the number of moles of water per mole of anhydrous solid (x) will be calculated by dividing the number of moles of water by the number of moles of the anhydrous solid (Equation 2.12.
Is there answer to the question
Sublimation takes place when an element or compound changes directly from a solid into a gas without passing through the liquid state....
this is what i found i do not know much about dry ice but i hope this helps you!!!
http://askville.amazon.com/ice-unused-freezer-shrink-time/AnswerViewer.do?requestId=2377877
this is the website i found this little information from i hope this helps you out
