Answer:
The Sun releases energy by fusing four hydrogen nuclei into one helium nucleus.
Explanation:
nuclear energy
Mass connects: Matter and Energy.
Explanation:
Hope this answer helps.
Answer:
A) is true
Explanation:
For the reaction:
O₂(g) + 2F₂(g) ⇄ 2OF₂(g); Kp = 2,3x10⁻¹⁵
kp is defined as:
Kp = 2,3x10⁻¹⁵ = [OF₂]²/[O₂] [F₂]²
A) If the reaction mixture initially contains only OF₂(g), then at equilibrium, the reaction mixture will consist of essentially only O₂(g) and F₂(g). <em>TRUE. </em>As the kp is 2,3x10⁻¹⁵ means per 1 of [O₂] [F₂]² you will have just 2,3x10⁻¹⁵ of [OF₂]²
B) For this equilibrium, Kc = Kp. <em>FALSE. </em>That is true just when moles of reactants are the same than moles of products. Here there are 3 moles of reactants vs 2 moles of products.
C) If the reaction mixture initially contains only OF₂(g), then the total pressure at equilibrium will be less than the total initial pressure. <em>FALSE. </em>Because per 2 moles of OF₂(g) you will produce 3 moles of gas increasing pressure.
D) If the reaction mixture initially contains only O₂(g) and F₂(g), then at equilibrium, the reaction mixture will consist of essentially only OF₂(g). <em>FALSE. </em>For the same reason of A), the mixture will contains essentially only O₂(g) and F₂(g)
E) If the reaction mixture initially contains only O₂(g) and F₂(g), then the total pressure at equilibrium will be greater than the total initial pressure. <em>FALSE. </em>If mixture initially contains only O₂(g) and F₂(g), 3 moles will of gas will react to produce 2 moles of gas doing pressure decreases.
I hope it helps!
Hey there!
Your correct answer will be B., D.
The reason that A. and C. are not true is this:
For A.: Electronegativity gets higher as you move up and to the right on the periodic table. This means that, generally, the bigger molecules have a <em>smaller </em>electronegativity number.
For C.: This is simply the reverse of the correct statement. Ionization energy is the energy to <em>take away </em>a(n) electron(s) of an atom.
I hope this helps!
Brady
Answer:
The best answer is A.
(Newton’s “Mathematica” is not exactly new, and not filled with errors).
Explanation: