Answer:
That involve the complete transfer of an electron from one atom of an element to another
I believe the correct answer is C. The amount of catalyst is the same at the end as at the beginning of the reaction. Catalysts can't be consumed by the reaction thus is not D.
The answer is homogeneous
Answer:
The answer is all of the above
Explanation:
Sound has waves which are compression waves and those waves transfer into energy molecules. Sound is heard by human ears. Sound waves can behave in predictable ways. All sound requires a medium through to travel