It is clean and is blue when you take away air hope i helped.
<span>2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
I know I got this wrong</span>
Answer:
40 (superscript) is the mass number aka atomic mass, and 19 (subscript) is the atomic number aka number of protons and electrons.
The answer is B. Increase, Decrease
