it is called an element sir.
Answer:
5.0
Explanation:
We have a buffer system formed by a weak base (C₅H₅N) and its conjugate acid (C₅H₆N⁺). We can calculate the pOH using the Henderson-Hasselbach's equation.
pOH = pKb + log [acid]/[base]
pOH = -log 1.8 × 10⁻⁹ + log 0.02/0.01
pOH = 9.0
Then, we will calculate the pH.
pH + pOH = 14
pH = 14 - pOH = 14 - 9.0 = 5.0
Answer/Explanation:
Wood: E
Freshly brewed black coffee: O
Water: O
Lucky Charms: E
Salt: O
Dirt: E
Sausage and mushroom pizza: E
Air: O
Milk: O
Gold: O
Any mixture that looks the same through the substance is homogenous. The different parts are unable to be visibly seen. (Any periodic element is homogenous)
Any mixture that can be easily determined a mix and cannot be evenly separated or dispersed is heterogenous.
The molecular formula of the sulfur tetrachloride will be and molecular mass of will be 172 g/mol.
The molecular is the representation of the formation of whole element which occur in a particular molecule.
Example : .
It is know that in sulfur tetrachloride , one atom of sulfur and 4 atom of chlorine is exist. The valence electrons of S is 6 on the other hand the valence electron of F is 7. After the combination, they will attain the molecular compound sulfur tetrachloride which formula will be .
The molecular mass of will be 172 g/mol.
. = 32+ (35 ×4) = 172 g/mol
Therefore, the molecular formula of given compound will be .
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Volcanic eruptions is the answer