Answer:
Streak is tested by scraping a mineral across plate
Explanation: Hope this helps :)
I looked up what is the molecular formula for Phosphine and got this: PH3
Hope this helps! Let my know if this was correct.
electrical energy
Explanation:
electrical energy is caused by moving partial that have a negative or positive charge these purses are called electron current electricity is electrical energy that flows from one place to another usually through a wire electricity is a type of energy that comes from an electrical energy
A
nswer: -
C. Energy is released by the reaction
Explanation:-
An exothermic reaction is one in which during the progress of the reaction heat is evolved.
So energy is released by the reaction.
It cannot be created as energy is neither created nor destroyed as per the Law of conservation of energy. Energy is not transferred either.
The energy released during the progress of the reaction originates from the chemical bonds of the reactants as they break during their conversion into products.
Answer:
sorry I didn't know the answer
Explanation:
ok
