When in history was the origin of Sci-Fi as genre? Why then?
1 answer:
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Answer:
Hello, There!
I'm glad to help!
The molecular formula of common salt is
And the elements present are
Sodium (
Chlorine
Explanation:
<u><em>A pure substance that consists of only the same kind of atoms is called an element whereas two or more elements combine to form a compound. </em></u>
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<em>Therefore, I hope this Helps!</em>
Answer:
The relationship is expressed as follows:
Explanation:
Most acidic substances are weak acids and are therefore only partially ionized in acqeous solution. We cab use the equilibrium constant for the ionization of acid to express the extent to which the weak acid ionizes. If we represent a general weak acid as HA, we can write the equation for its ionization reaction like this:
To calculate the pH of a weak acid, we use the equilibrium concentration of the reacted species and product.
Take for example:
HA → H + A⁻
where A id the conjugate base.
Knowing that x amount of acid reacts, we can solve like this:
HA → H + A⁻
H+ = antilog (pH)
thus, the pH of the acid is equals to H+ (initial) - H+ (equilibrium) ≈ H+ (initial)