Answer:
liquid has more attraction between molecules. It takes energy to break these forces to change the liquid to a gas.
Explanation:
because liquid has more attraction
N the nucleus, there are protons and neutrons. That's two parts.
<span>Outside the nucleus, there are electrons. That's a total of three parts and that is all that chemists discuss. Theoretical physicists talk about other sub nuclear "parts", but if you include them, the number goes way over 5. </span>
<span>The "shells", "sub-shells", "orbits", "orbitals", "probabilities" and the like are not physical parts, but only descriptions of energy</span>
Answer is: <span>B) -50.2 kJ.
Balanced chemical reaction: </span>N₂(g) + 3H₂(g) → 2NH₃(g) ΔH = -<span>100.4 kJ.
This is exothermic reaction, because heat is released and energy is include as product of chemical reaction.
Make proportion, two moles of ammonia released 100.4 kJ of heat, then one mole of ammonia released:
2 mol(NH</span>₃) : (-100.4 kJ) = 1 mol : ΔH.
ΔH = -50.2 kJ; <span>heat released per mole of NH</span>₃.
<span>In my opinion, it is a rotten question, phrased as it is. It all depends on how much acid and how much base. It also depends on the type of acid (sulfuric acid reacts differently than hydrochloric - sulfuric has two atoms of hydrogen compared to hydrochloric which has one atom of hydrogen per molecule). It also can depend on the concentration - for example, if you're mixing a one molar solution of acid with a two molar solution of base, and on how much you are mixing - if you are mixing one liter of base with one liter of acid, or whatever. Your instructor needs to establish these things in order to make it a question you can actually answer.
But, your instructor probably means what happens if you add the same amount of an acid and a base together, and they have the same strength. Ideally, if you mix the same amounts of an acid and a base, and the acid has one atom of hydrogen, then you would get water plus a salt, which would have a neutral pH.
For example, HCl + NaOH, mixed in the same amounts and at the same concentrations would give you HOH (or water) plus NaCl (which is actually table salt). All acids and bases that are mixed in these equal concentrations always give you water plus a salt (although not always table salt - just what is chemically known as a "salt).</span>
answer: A and C
Explanation:
i think its that because all you have to do is just think about it very slowey in it will just come to your head.
