Indium has 49 protons
mass number (# of neutrons and # of protons combined) is 115
115 - 49 = 66
66 neutrons
2 C₇H₆O₂ + 15 O₂ → 14 CO₂ + 6 H₂O
<u>Explanation:</u>
C₇H₆O₂ + O₂ → CO₂ + H₂O
First we have to balance the O- atoms, we have to put 6 in front of water so there are 12 H atoms on RHS, to balance it we need to put 2 in front of C₇H₆O₂, and so we have 14 C - atoms on LHS, 28 + 6 = 34 O - atoms on RHS, so we have to put 15 in front of Oxygen in LHS, so that each and every atom in the equation gets balanced now. The balanced equation is, 2 C₇H₆O₂ + 15 O₂ → 14 CO₂ + 6 H₂O
Answer:
A. a poisonous gas is one of the reactants
Explanation:
Chlorine gas is a poisonous and very toxic gas. Chlorine is a moderately reactive halogen. It is a greenish-yellow gas with choking and irritating smell. The gas is very poisonous. Proper care must be taken when working with this gas.
This is why chlorine gas are harmful in production of fireworks.
