Saccharides are carbohydrates, molecules containing Carbon (C), Hydrogen (H), and Oxygen (O). "Saccharo" means sugar in Greek. Also Greek, "mono" means one, "di" means two, and "poly" means many.
A sugar molecule is based upon a ring of carbons with H's and OH's attached. One sugar molecule alone is a monosacchararide, like glucose and fructose. Two sugar molecules bonded together covalently is a disaccharide, like lactose (milk sugar) and sucrose (table sugar). Many sugar molecules (upwards of hundreds or thousands) bonded together covalently is a polysaccharide. Examples are glycogen (animal starch) and cellulose (plant starch).
So they can predict what happens next
To be honest, I can’t really see the question. So please next time just type it out lol
The alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.
<h3>What are the properties of alkali metals?</h3>
The alkali metals have the high thermal and electrical conductivity. It has high lustre, ductility, and malleability as compared to other materials. Each alkali metal atom has one electron in its outermost shell which make more reactive.
So we can conclude that the alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.
Learn more about metal here: brainly.com/question/25597694
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Answer:
8.354 nanometers
Explanation:
To treat a diffusive process in function of time and distance we need to solve 2nd Ficks Law. This a partial differential equation, with certain condition the solution looks like this:
![\frac{C_{s}-C{x}}{C_{s}-C_{o}}=erf(x/2\sqrt{D*t})](https://tex.z-dn.net/?f=%5Cfrac%7BC_%7Bs%7D-C%7Bx%7D%7D%7BC_%7Bs%7D-C_%7Bo%7D%7D%3Derf%28x%2F2%5Csqrt%7BD%2At%7D%29)
Where Cs is the concentration in the surface of the solid
Cx is the concentration at certain deep X
Co is the initial concentration of solute in the solid
and erf is the error function
Then we solve right side,
![\frac{C_{s}-C{x}}{C_{s}-C_{o}}=\frac{1018atoms/cm3-1016atoms/cm3}{1018atoms/cm3}=0.001964](https://tex.z-dn.net/?f=%5Cfrac%7BC_%7Bs%7D-C%7Bx%7D%7D%7BC_%7Bs%7D-C_%7Bo%7D%7D%3D%5Cfrac%7B1018atoms%2Fcm3-1016atoms%2Fcm3%7D%7B1018atoms%2Fcm3%7D%3D0.001964)
And we need to look up the inverse error function of 0.001964 resulting in: 0.00174055
Then we solve for x:
![x=0.00174055*2*\sqrt{D*t} =0.00174055*2*\sqrt{2*10^{-12}cm^{2}/s*8h*3600s/h}=8.35464*10^{-7}cm](https://tex.z-dn.net/?f=x%3D0.00174055%2A2%2A%5Csqrt%7BD%2At%7D%20%3D0.00174055%2A2%2A%5Csqrt%7B2%2A10%5E%7B-12%7Dcm%5E%7B2%7D%2Fs%2A8h%2A3600s%2Fh%7D%3D8.35464%2A10%5E%7B-7%7Dcm)