I think its C i don't know if i am right
B- 90 grams bc 45 mL times 2 equals 90
Answer:
Nitrogen will called as atom or molecule or ion too in the state which it exist means in which form it is present .
Burning charcoal is a chemical reaction called combustion
<span>The number next to the simbol of the element ions (as a superscript) means the number of charges of the ion. For example N (+),, where (+) is a superscript means that the charge of the ion is 1+. S(2-), where (2-) is a superscript, means that the charge of the ion is (2-). OH (-), where (-) is a superscript, means that the charge of OH ion is (1-) . </span>
