<u>Answer:</u>
<u>Explanation:</u>
Frozen water is known to have more volume, but less density. When water slowly gets unfrozen, it'd volume decreases and its density increases. Hence, when the water gets unfrozen, it's volume decreases.
Zn + H₂SO₄ = ZnSO₄ + H₂
answer (3) <span>single replacement
hope this helps!</span>
Answer:
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
sorry if im wrong
Explanation:
Solid (s), liquid (l), gas (g), or dissolved in water (aq). aq is called aqueous which comes. from the Latin word aqua meaning water. If you do not know the state of a substance. see melting and boiling points.
The noble gas notation is as follows- you must start with the noble gas that is before the element which in this case is Krypton and then from there you continue the electron configuration as follows- [Kr] 5s^2 4d^10 5p^2
