<span>d. A catalyst will be used up in the reaction is wrong,
amount of catalyst should not change</span>
When a solid turns into a liquid
Example: Ice cube melts into water
The answer is E.
Chemoautotrophs are organisms that use inorganic <span>compounds as an energy source and CO2 as a carbon source. The organisms live in </span>hostile environments like dark depths of the sea. Inorganic energy sources that they use are mostly hydrogen sulfide, elemental sulfur, ferrous iron, molecular hydrogen, and ammonia.
That question shoulda be true
Pure substance is only one type of atom or molecule. A mixture is a bunch of different atoms together
