Answer:
FeS
Explanation:
The reason why their is no subscripts is because as put in the question, the charges are equivalent. As you can see, +2 and -2 equal each other out.
Note: S has a charge of -2, not +2. (Look at oxidation rules.)
Answer:
18.06 g of ammonia
Explanation:
This is the reaction:
NH₃ + CH₃OH → CH₃NH₂ + H₂O
Ratio is 1:1
1 mol of ammonia reacts with 1 mol of methanol.
Let's convert the mass of methanol to moles.
34 g . 1 mol / 32 g = 1.06 moles
We need 1.06 moles of NH₃ whichs is the same to say:
1.06 moles. 17 g / 1 mol = 18.06 g of NH₃
Rmm of N20 = (14X2) + 16 = 44
Percentage by mass of Nitrogen in N20 = 28/44x100 = 63.64
66x0.6634 = 43.7844g of Nitrogen in 66g of N20
Moles = Mass/Mr = 43.7844/14 = 3.13 moles
Baking soda and vinegar
explosions
rust
fireworks