To keep your seat and not moving so you<span> will not bang against other parts within the </span>car<span> such as steering wheel</span>
Answer:
In none of the reactions ΔH°rxn equal to ΔH°f of the product.
Explanation:
The standard enthalpy of formation (ΔH°f) is the enthalpy change when 1 mole of a product is formed from its constituent elements in the standard states.
1/2 O₂(g) + H₂O(g) ⟶ H₂O₂(g)
ΔH°rxn is NOT equal to ΔH°f of the product because H₂O(g) is not an element but a compound.
Na⁺(g) + F⁻(g) ⟶ NaF(s)
ΔH°rxn is NOT equal to ΔH°f of the product because Na and F are not in their standard states (Na(s); F₂(g)).
K(g) + 1/2 Cl₂(g) ⟶ KCl(s)
ΔH°rxn is NOT equal to ΔH°f of the product because K is not in its standard state (K(s)).
O₂(g) + 2 N₂(g) ⟶ 2 N₂O(g)
ΔH°rxn is NOT equal to ΔH°f of the product because 2 moles of N₂O are formed.
In none of the above ΔHrxn equal to ΔHf of the product.
<span>The act of constantly spraying the produce with distilled
water by the store is to make the vegetables keep fresh and moist. Now since we
know that water vaporizes over time, so we would really expect some water from
the carrots to be vaporized out hence resulting in reduction of overall weight
of the carrot due to loss of water.</span>
Answer:
Average atomic mass of potassium based on these relative abundances
![= 39.0944](https://tex.z-dn.net/?f=%3D%2039.0944)
Explanation:
The atomic mass of this element will be equal to the sum of product of its three isotopic masses and its fractional abundance
For isotope I -
Mass of Potassium-39
amu
Fractional abundance of Potassium-39
%
Mass of Potassium-40
amu
Fractional abundance of Potassium-40
%
Mass of Potassium-41
amu
Fractional abundance of Potassium-41
%
Average atomic mass of potassium based on these relative abundances
![= (38.9636 * 0.9326)+ (39.9640*0.0001) + (40.9618 * 0.0673)\\= 36.3374 + 0.0003 + 2.7567\\= 39.0944](https://tex.z-dn.net/?f=%3D%20%2838.9636%20%2A%200.9326%29%2B%20%2839.9640%2A0.0001%29%20%2B%20%2840.9618%20%2A%200.0673%29%5C%5C%3D%2036.3374%20%2B%200.0003%20%2B%202.7567%5C%5C%3D%2039.0944)
Answer:
A. would be the most logical answer in this situation
Explanation:
See the point is when veterinarians give dogs the vaccine for rabies this exclusive medicine kills the cells that contain virus so therefore A. is the correct answer
Hope this helped five starts and Branliest would be appreciated ;D