I YHINK ITTTSSS SHMMM BBBBB
The answer is number 1 - energy is emitted
Energy is released when an atom in an excited state returns to the ground state.
The force that accelerates objects towards Earth is gravity.
Answer:
CaCO3 is false
Explanation:
Because HCl is hydrongen chloride
2NaClO₃ → 2NaCl + 3O₂
mole ratio of NaClO₃ to O₂ is 2 : 3
∴ if moles of NaClO₃ = 12 mol
then moles of O₂ =
= 18 mol
Mass of O₂ = mol of O₂ × molar mass of O₂
= 18 mol × 16 g/mol
= 288 g
So I wasn't sure which equation to use since you did not specify so I just used the decomposition reaction. If you should have used another reaction then just follow the same steps and you'll get your answer.