I don’t know what the question is asking
A. <span>the layer of rock and mineral fragments that covers nearly all of Earth's land surface</span>
Answer:
D
Explanation:
This creates a gap that we call an oceanic trench
:)
1) Chemical reactions produce new substances
Ans (d)
2) The symbol, Δ in a chemical reaction means that heat of supplied to the reaction.
Ans (a)
3) A skeleton equations does not show the reaction stoichiometry, i.e. the relative amounts of reactants and products.
Ans (d)
