Answer:
3, because H2 ×3 =6, and if you plug in a two in NH3 it would be equal
Density is equal to mass divided by volume.
So D=118/12
D=9.83
Answer:
we have lots of bikes and i think that we could improve them to be portable scooters. we also have buses and i think that we should change them to subways to prevent all the pollution. Also i think cars should be less polluted in the future
Explanation: hope this is an okay answer.
Bond energy refers to the energy that must be taken in to break a bond. It is also the energy required to form the bond.
<h3>What is Bond energy?</h3>
The term bond energy refers to the energy that must be taken in to break a bond. It is also the energy required to form the bond.
The energy that must be supplied to break the bonds in two molecules of HCl is 862 J. The energy released is obtained from; 862J - [436 +262] = 164J.
The total energy of the reaction is 164J, this is called the enthalpy change. Based on this value of the total energy, the reaction is endothermic. Hence, it is true that; "It takes more energy to break the two H–Cl bonds than is released when forming the H–H and Cl–Cl bonds."
Learn more about bond energy:brainly.com/question/16754172?
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