Answer:
just tell that someone you like them
OR
you can just make them feel it, I'm sure that someone will get it and if that someone don't then just tell the someone you like them.
and say why them can't it be just her or him ?
I mean that someone is juat one right
Answer:
The correct option is the second option
Explanation:
Generally, the aim of science is to understand a particular concept in the best and the most correct way possible; hence experiments are done and repeated to ensure an explanation is actually true about a concept or need modification.
The atomic models have also been a "beneficiary" of this process. The different atomic models are usually been improved upon as scientists leaned more. For example, the Dalton's atomic theory has been modified to a more correct atomic description; some of which are shown below
(1) Dalton's theory suggested that an atom is the smallest unit of a molecule. We know now from different experiments (by J. J Thompson and Rutherford) that atoms are not the smallest molecules and are made up of smaller particles known as protons, neutrons and electrons.
(2) Dalton's theory suggested that atoms of the same elements are alike in all aspects. The knowledge of isotopy shows this is not always the case. As atoms of the same elements (isotopes) have the same atomic number but different mass number; hence cannot be said to be the same in all aspects.
(3) Dalton's theory also suggested that when atoms react, they do so in fixed, simple whole number ratio. The knowledge of organic chemistry shows atoms do not always react in simple whole number ratios
There are several modifications to different postulations by scientists that have also occurred aside from this, hence the most correct answer is that "As scientists learned more, they modified the atomic model"
Answer:
8.9357.
Explanation:
So, let us dive right into the solution to the above problem;
We have that the volume of the solution = 0.450 L.
The first thing to do is to determine the number of moles by using the formula below:
Pressure × volume = number of moles × gas constant × temperature.
Therefore, making the number of moles the subject of the formula we have;
Number of moles = (pressure × volume)/ has constant × temperature.
Number of moles of NH3=( 735 × 7.50 )/ 62.4 × 295 = 0.2995 moles.
The number of moles of HCl =
0.450 × 0.450 = 0.2025 moles.
Molarity of HCl = 0.2025 moles/ 0.450 L = 0.45M.
The molarity of {OH^-} = (0.2995 moles - 0.2025 moles) /0.450 = 0.097/0.450 = 0.2156 M.
Therefore, kb = 1.8 × 10^-5 = [ 0.450] [OH^-] / [ 0.2156 M] = 0.000008624.
[OH^-] = 0.000008624.
Hence, pOH = 5.0643.
pH = 14 - 5.0643 = 8.9357.
I think it would be 1, 4, 5! Also I love your profile picture!
