Bronsted lowry bases
NO2- amd OH-
7, i'm pretty sure, hope I helped!
Your answer would be 172.1703 g/ml
There are 4 things that are evidence of a chemical change.
1)Change in color
2)Change in shape (gas being let out)
3)Change in temperature
4)Change in smell
Burning wood is a chemical change because it has a change in color, and shape.