Answer:
Y = 92.5 %
Explanation:
Hello there!
In this case, since the reaction between lead (II) nitrate and potassium bromide is:
Exhibits a 1:2 mole ratio of the former to the later, we can calculate the moles of lead (II) bromide product to figure out the limiting reactant:
Thus, the limiting reactant is the KBr as it yields the fewest moles of PbBr2 product. Afterwards, we calculate the mass of product by using its molar mass:
And the resulting percent yield:
Regards!
Answer is: true.
Demand decreases and competition increases decrease the quantity supplied.
Quantity supplied is the quantity of a commodity that producers are willing to sell at a particular price at a particular point of time.
Quantity demanded is the quantity of a commodity that people are willing to buy at a particular price at a particular point of time.
Quantity demanded can change at the same price depending upon factors like recession, changes in the taste of the consumer.
Competition is rivalry between two or more economic groups.
Valence electrons determine its valency ? (The group, as in its oxidation state and stability)
Answer:
A stronger acid is needed to neutralize the reaction.
Explanation:
Neutral pH solutions are because the acid counteracts the effect of the base, and vice versa.
Both chemical products, both acid and base, reach a pH of 7, which indicates the neutrality of the solution in the reaction, that is, the solution is neither acidic nor basic but NEUTRAL.
The higher the alkalinity of the base, the greater the acidity of the acid will be needed to balance and balance the pH to give neutrality as the final product.
