3Fe(s) + 4H2O(g) ⇌ Fe3O4(s) + 4H2(g)
2NO2(g) ⇌ N2O 4(g)
3H2(g) + N2(g) ⇌ 2NH3(g)
2SO2(g) + O2(g) ⇌ 2SO3(g)
Correct answer is A
No explanation has been provided for this answer.
The volume occupied by a given mass of gas depends on its
diffusion rate
temperature and pressure
degree of solubility
relative density
Correct answer is B
No explanation has been provided for this answer.
Which of the following molecules has a linear structure?
NH3
H2O
CO2
CH4
Correct answer is C
No explanation has been provided for this answer.
Which of the following molecules has a linear structure?
NH3
H2O
CO2
CH4
Correct answer is C
No explanation has been provided for this answer.
Which of the following can be used to predict the type of bonding in HCI?
pH value
Electronegativity difference
Heat of neutralization
Heat of solution
Correct answer is B
No explanation has been provided for this answer.