<h2>Project Reports</h2>
<h3>A) Mixture</h3>
This refers to the material that is made when different substances mix up physically and causes a reaction.
You can make on the project of Mixture -
- 1) Alloys
- 2)Colloids
- 3) Suspension
- 4) Solution
<h3>B) Compound</h3>
This refers to the chemical bond that holds different atoms tightly
You can make on the project of Compound -
- 1)Water
- 2)Methane
- 3)Carbon Dioxide
- 4) Sulfuric Acid
<h3>C) Elements</h3>
Based on the fact that the atom is the smallest indivisible part of an element, elements like phosphorous cannot be further broken down.
You can make on the project of Elements -
- 1) Mercury
- 2) Iron
- 3) Copper
- 4)Carbon
Read more about mixtures and compounds here:
brainly.com/question/491220
#SPJ1
Answer:
Explanation:
Hello,
In this case, given the acid, we can suppose a simple dissociation as:
Which occurs in aqueous phase, therefore, the law of mass action is written by:
![Ka=\frac{[H^+][A^-]}{[HA]}](https://tex.z-dn.net/?f=Ka%3D%5Cfrac%7B%5BH%5E%2B%5D%5BA%5E-%5D%7D%7B%5BHA%5D%7D)
That in terms of the change 
due to the reaction's extent we can write:
But we prefer to compute the Kb due to its exceptional weakness:
Next, the acid dissociation in the presence of the base we have:
![Kb=\frac{[OH^-][HA]}{[A^-]}=1x10^{6}=\frac{x*x}{0.1-x}](https://tex.z-dn.net/?f=Kb%3D%5Cfrac%7B%5BOH%5E-%5D%5BHA%5D%7D%7B%5BA%5E-%5D%7D%3D1x10%5E%7B6%7D%3D%5Cfrac%7Bx%2Ax%7D%7B0.1-x%7D)
Whose solution is 
which equals the concentration of hydroxyl in the solution, thus we compute the pOH:
![pOH=-log([OH^-])=-log(0.0999)=1](https://tex.z-dn.net/?f=pOH%3D-log%28%5BOH%5E-%5D%29%3D-log%280.0999%29%3D1)
Finally, since the maximum scale is 14, we can compute the pH by knowing the pOH:
Regards.
The correct answer would be C. A blank page <span>is a non-example of volume. Volume is the expression of size for 3D objects. It has the measurement of a distance raised to the power of three. Choice A and B signifies that a certain the glass contains a certain volume of something which half of the glass. </span>
it decreases the density of the object the air bubbles take up space. it increases the volume of the object slightly but the objects weight remains the same, hence the objects density decreases
Answer:
9.474 x 10^2
Explanation:
ok. first you have to get the value in the required unit so 9474mm/(10mm/cm) = 947.4 so scientific notation states that the number must be raised to any power of an integer and the value of the number being raised must be less than than 10 and more than or equal to 1
so it must have one digit in front so.. 947.4 becomes 9.474 and because you move 2 places to the left, ur power is positive 2
and proof 10^2 is 100 so multiply 9.474 by 100 and u will get 947.4 cm which is also 9474 mm
