Autoionization Reactions are those reactions in which ions or molecules ionizes spontaneously without adding any external reagent.
For Example,
Autoionization of water.
H₂O + H₂O ⇆ H₃O⁺ + OH⁻
Autoionization reaction of Methanol is shown below,
Answer:
A change in form or appearance of matter
Explanation:
Answer:
"mole"
Explanation:
That is the definition of mole. Mole is a unit for the measurement of how much there is of something. In other words, in SI, 1 mol of a substance contains the same number of molecules/atoms as in 12 grams of carbon 12.
(Approximately 6.28 × 10^23 --> Avogadro's constant)
For further explanation, check out Wikipedia's article here:
https://en.m.wikipedia.org/wiki/Mole_(unit)
Answer:
The answer is
<h2>4.54 g/cm³</h2>
Explanation:
The density of a substance can be found by using the formula
![density = \frac{mass}{volume} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7Bmass%7D%7Bvolume%7D%20%20%5C%5C%20)
From the question
mass of rock = 454 g
volume = 100 cm³
The density of the rock is
![density = \frac{454}{100} = \frac{227}{50} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7B454%7D%7B100%7D%20%20%3D%20%20%5Cfrac%7B227%7D%7B50%7D%20%20%5C%5C%20)
We have the final answer as
<h3>4.54 g/cm³</h3>
Hope this helps you