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meatel and green stuf
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Why powdered zinc reacts to form hydrogen gas faster than large pieces of zinc when both are placed in hydrochloric acid?
Powdered zinc has a larger surface area compared to large pieces, allowing for a higher rate of reaction with the hydrochloric acid. The increased surface area exposes more zinc atoms to the acid, leading to faster hydrogen gas production.
Why powdered zinc reacts more rapidly with sulfuric acid than a large piece of zinc of equal weight does?
Powdered zinc has a larger surface area than a large piece of zinc, which allows for more contact points between the zinc and the sulfuric acid, leading to a faster reaction. The increased surface area provides more opportunities for the acid to react with the zinc atoms, resulting in a higher reaction rate.
What happens when you add powdered zinc to a mixture of copper sulphate?
When powdered zinc is added to a mixture of copper sulfate, a redox reaction occurs where zinc displaces copper from the solution. This leads to the formation of solid copper and zinc sulfate solution. The color change from blue to colorless indicates the completion of the reaction.
What is the function of anhydrous zinc chloride in the formation of fluorescein?
Zinc Chloride catalyses the reaction of e.g. phatalic anhydride and resorcinol. If you head these three as powdered substances with a bunsenburner, they react much faster. After solving this mixture in water, you can filtrate the Zinc Cholride out of the solution. For more examples what a catalyst does, read Wiki or Google catalyst. Good Luck
How much zinc in the zinc carbonate?
88
Why powdered zinc act more vigorously than metal zinc?
Powdered zinc has a greater surface area giving it a greater chance to react with a substance.
Why powdered zinc reacts to form hydrogen gas faster than large pieces of zinc when both are placed in hydrochloric acid?
Powdered zinc has a larger surface area compared to large pieces, allowing for a higher rate of reaction with the hydrochloric acid. The increased surface area exposes more zinc atoms to the acid, leading to faster hydrogen gas production.
Why powdered zinc reacts more rapidly with sulfuric acid than a large piece of zinc of equal weight does?
Powdered zinc has a larger surface area than a large piece of zinc, which allows for more contact points between the zinc and the sulfuric acid, leading to a faster reaction. The increased surface area provides more opportunities for the acid to react with the zinc atoms, resulting in a higher reaction rate.
What gas is produced when powdered zinc is added in dilute hydrochloric acid?
Hydrogen gas.
What happens when you add powdered zinc to a mixture of copper sulphate?
When powdered zinc is added to a mixture of copper sulfate, a redox reaction occurs where zinc displaces copper from the solution. This leads to the formation of solid copper and zinc sulfate solution. The color change from blue to colorless indicates the completion of the reaction.
What is the difference between zinc dust and zinc flake?
Zinc dust is finely powdered zinc whereas zinc flake is zinc flakes with larger surface area. Zinc dust is typically used as a pigment in paints and coatings, while zinc flake is used as a protective coating for corrosion resistance.
Is mixing powdered zinc and sulfur at room temperature a chemical change?
Yes, mixing powdered zinc and sulfur at room temperature is a physical change because no new substances are formed. The zinc and sulfur particles simply mix together physically and can be separated again.
Is zinc hard?
Zinc has a relatively low hardness compared to other metals. Its hardness can vary depending on its form, such as in solid or powdered form. In solid form, zinc has a rating of 2.5 on the Mohs scale of mineral hardness, which is relatively soft.
What element is in center electron post of a battery?
We find carbon or graphite as the center electrode of a zinc-carbon battery. It's the "common" battery we use in lots of stuff (but not an alkaline battery). That center electrode is the positive one, and the zinc makes up the outer or negative electrode in this battery. In an alkaline battery, manganese dioxide is the center, or the cathode (positive electrode). Powdered zinc will be found as the outer or negative electrode (anode).
What did the framers wear?
powdered wig
Where can I buy powdered vodka?
Powdered alcohol, including powdered vodka, is not legal for sale in the United States as of 2021.
What is combined powdered?
You think probable to amixture of powdered materials.
