Scientists often repeat one or more steps several times.
Determining on the temperature, ice could melt, water could freeze or evaporate. Just an example.
Uranium is in the "f" block, because it's external electron configuration is
Answer:
This is a tricky one because this person was a massive part of your life, and now they're not. You're probably feeling hurt, confused, lonely and angry all at once. I have been here too and it's horrible so my thoughts are with you! For me, I had to make peace with it. It sounds silly but unfortunately there's not much we can do to try and win them back. If someone can go from being your best friend to all of a sudden hating you then they probably don't care about you as much as they should, and you're probably better off without them :) Seek people who actually care for you, and want to spend time with you. Friendships come and go, and as much as it hurts, if you can accept this and cherish your real friendships (the ones where you can go years without seeing eachother, but are there like a shot when you need them) then the pain should diminish. Good luck :)
Explanation:
Answer:199mL
Explanation:
Let V ml be the volume of blood in animal.
When 1.0 ml sample is added, total volume becomes V+1.0ml. Its activity is 1000 dpm.
After equilibrium, 2.0 ml of the sample had activity of 10 dpm.
Hence, after equilibrium, the activity of V+1.0 ml of blood sample will be 10/2 (V+1.0ml)=1000dpm
Hence, V=199ml.
