Answer:
D. A change of appearance
Answer:
There are approximately 5.55 moles
Explanation:
A flight simulator that helps astronauts prepare for a shuttle launch is an example of a Scientific Model.
a pure compound because an element is untouched and is just itself
Answer:
8.4
Explanation:
-log(4.08x10^-9) = 8.4
- Hope that helped! Please let me know if you need further explanation.