In a chemical reaction, ∆H is positive when
...In a chemical reaction, ∆H is positive when
H (product) >H (reactant)
H(product) < H (reactant)
H (product) = H (reactant)
H (product) = Zero (reactant)
Correct answer is A
No explanation has been provided for this answer.
In the extraction of iron, hot air is introduced into the blast furnace through? ...
The electrode potential in volts of 2H+(aq) / H2(q) system is ...
The gas that can be collected by downward displacement of air is ...
The shape of a graphite crystal is ...
Which of the following statements is NOT a chemical property of an acid? ...