Answer:
its a compound
Explanation:
because it was broken down into a gas and blue powder, elements cant be broken into simpler substances.
Weight and blood group
So this is just a guess but i think its D but like I said its a guess.
YES
A RULER HAS TWO ENDS THAT'S WHY IF YOU HOLD IT ON BOTH SIDES YOU CAN FEEL THE ENDS OF THE RULER PUSHING AGAINST YOU HANDS
I know the answer
Yes
