The answer is D: A metal is added to an acid and hydrogen gas is formed, because that's a chemical reaction
Answer:
I hope this helped
Explanation:
1. A region with a high probability of containing electrons. An example is a simple atom, like Hydrogen.
2. Bohr's model of the atom, in which electrons circle the nucleus at fixed energy levels, cannot explain all the behaviors of electrons. Orbitals are the basis of the electron cloud model of the atom.
Answer:
B.false because if the reactant concentration is disturbed the whole reaction will be affected.
Explanation:
The tiny holes in a sponges outer layer that take in water are called ostia, I believe. Hope it helps