the reaction vessel gets hotter as the reaction proceeds
∆H for the reaction is positive
the rate of the reaction increases with time
the activation energy of the reaction is high
the rate of the reaction increases with time
Correct answer is A
No explanation has been provided for this answer.
stops the growth of fungus on the rubber
increases the solubility of the rubber
decreases the elasticity of the rubber
hardnes the rubber through cross-linkage
removes sulphur from the rubber
Correct answer is D
No explanation has been provided for this answer.
bond energy
ionization energy
potential energy
activation energy
kinetic energy
Correct answer is B
No explanation has been provided for this answer.
Ethyne
Ethane
Monochloroethene
Propene
Butadiene
Correct answer is B
No explanation has been provided for this answer.
What is the number of oxygen atoms in 32g of the gas? (O = 16, L = 6.0 X 10\(^{23}\) mol\(^{-1}\))
3.2 X 10 23
6.0 X 1023
1.2 X 1024
1.6 X 1024
2.0 X 1024
Correct answer is B
Oxygen is Diatomic
: 1 mole of oxygen contains 2 ATOMS
→ 2 X 16g = 32g
32g of the gas = 6.0 X 10\(^{23}\) mol\(^{-1}\)