Answer:
A. 3
Explanation:
There is half as many moles of CO₂ as of O₂. Half of 6 is 3. The equation is:
Breaking glass is an example of a physical change because if you break it, it is still glass.
a. Pb 208
b. About 21.7 minutes
c. only a trace amount
It under goes beta decay.
There should be virtually nothing after an hour
2 1 4 3
1)false
2) false
3)True
4)True
5) false
6)false
7) true
8) d
9)false
10) b
16.00 g/mol
