Answer:
3. 5. and i think thats it
(3) The concen<span>tration of the solution remains constant.</span>
Number 18 is correct, number 19 is the particles speed up and the substance expands, and number 20 is decrease in volume
Answer:
the answer is True i just took the test
Explanation:
Answer:
60ug
Explanation:
If it has experienced two half lives, that means it has been halved twice. in that case, to undo it, just multiply it by two twice. 0.15ug * 2 = 0.30ug. 0.30ug * 2 = 0.60ug. Hope this helps.
