I don't really know what your question is asking so I am just going to list a few facts that I think might be what you are asking.
Ice turning into water is a physical change. The ice is undergoing the process of melting which does not change it chemically (ice and water are chemically identical in the sense that they are both composed of H₂O molecules) and the only difference between water and ice is that water molecules have a higher average amount of energy than the ice molecules do. When a substance melts, the molecules within the substance gain energy (in the form of heat) which allows them to break the intermolecular forces keeping them together. Since the melting of ice requires energy, the process is endothermic which means that the ice had to get energy from its surroundings and that water has more energy than ice does as a result of the process (ΔH is positive).
I hope that helps. Let me know in the comments if anything is unclear or if I did not answer your question.
<u>Answer:</u> The balanced chemical equation is written below.
<u>Explanation:</u>
Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.
A balanced chemical equation always follows this law.
For the given chemical reaction, the balanced equation follows:
This is considered as neutralization reaction because an acid reacts with a base to produce a salt and water.
Hence, the balanced chemical equation is written above.
There are 11 electrons in Sodium(Na)
The first shell can hold 2 electrons
The second shell can hold 8 electrons
The third shell can also hold 8 electrons but there is only 1 left
so the answer is 2, 8, 1
Explanation:
Magnesium has atomic number 12. It will be distributed in K, L, M shell in the following way:
K shell can accommodate a maximum of 2 electrons.
L shell can accommodate a maximum of 8 electrons and
M shell will accommodate 2 electrons
So the configuration becomes 2, 8,3
Answer:
C. 17 grams.
Explanation:
∵ mass % = [mass of solute/mass of solution] x 100.
mass of solute (NaCl) = ??? g & mass of solution = 140.0 g.
<em>∴ mass of NaCl = (mass %)(mass of solution)/100 </em>= (12.0)(140.0)/100 = <em>16.80 g ≅ 17.0 g.</em>