Answer:
Melting butter
Explanation:
You can reverse the change of butter back to its original state but you can never reverse the rest back to there original state
A. electron. The nucleus has protons and neutrons, quark is the particle which forms protons and neutrons.
Hi!
I believe there are 4 main chemicals in space uracil, cytosine, thymine, and pyrimidine :)
The final temperature of the lead-water system will be lower than the final temperature of the copper-water system.
